Start the Single Player Campaign on any difficulty.

Once you've started a New Game, this achievement will unlock as soon as the first cutscene has finished.

This is story related and cannot be missed.

All you need to do here is complete the mission "Black Tuesday" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Hunter Killer" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Persona None Grata" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Turbulence" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Back on the Grid" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Mind the Gap" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Goalpost" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Return to Sender" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Bag and Drag" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Iron Lady" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Eye of the Storm" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Blood Brothers" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Stronghold" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Scorched Earth" on any of the 4 difficulties.

This is story related and cannot be missed.

All you need to do here is complete the mission "Down the rabbit Hole" on any of the 4 difficulties.

Before you start, make sure the games difficulty is set to Veteran.

All you need to do here is complete the missions "Black Tuesday" & "Hunter Killer" on Veteran difficulty.

Before you start, make sure the games difficulty is set to Veteran.

All you need to do here is complete the missions "Persona Non Grata", "Turbulence" & "Back on the Grid" on Veteran difficulty.

Before you start, make sure the games difficulty is set to Veteran.

All you need to do here is complete the missions "Mind the Gap", "Goalpost" & "Return to Sender" on Veteran difficulty.

Before you start, make sure the games difficulty is set to Veteran.

All you need to do here is complete the missions "Bag and Drag" & "Iron Lady" on Veteran difficulty.

Before you start, make sure the games difficulty is set to Veteran.

All you need to do here is complete the missions "Eye of the Storm", "Blood Brothers" & "Stronghold" on Veteran difficulty.

Before you start, make sure the games difficulty is set to Veteran.

All you need to do here is complete the missions "Scorched Earth", "Down the Rabbit Hole" & "Dust to Dust" on Veteran difficulty.

You'll obtain this achievement once you've completed the final mission "Dust to Dust" on any difficulty.

Please refer to 'The Best of the Best' for more information.

You'll obtain this achievement once you've completed the final mission "Dust to Dust" on Veteran difficulty.

If you're a previous player of any of the Call of Duty games and their Veteran setting, then this shouldn't cause you to much trouble. The game plays very similar to MW2, which was the easiest of all the Call of Duty games. Take note that the game still has the same rules as the previous - for a cutscene or your AI members to do anything, you have to advance forward. If you just stand there, not moving forward, the enemy forces will just keep on spawning, so take your time but move up when you can.

Take note that you must also play the "Prologue" on Veteran difficulty to unlock the "The Big Apple" achievement. Not doing so will not unlock it after you complete the "Hunter Killer" mission.

Tips:

• Cover: Use this all the time. Stay prone if you can or crouch behind anything. These objects will be life savers.
• Guns: Be careful what guns you use or pick up. Picking up or using the wrong guns in certain situations can cause much heartache.
• Grenades: These can be life savers and will also help you advance. If you see a bunch of guys, cook a grenade, launch it into the group then quickly run forwards. Doing this will advance you and your team ad get that much needed checkpoint.
• Flash/Stun: Same as above really. These are a man's best friend on Veteran. Using one at the right moment can really change the way things are going in a heated battle.
• Drop-Shot: Learn to go prone while being confronted with the enemy AI. Doig so may give you that split second advantage over them.
• Reload: I know it's silly, but remember to reload. Many of times I've forgotten and then come up face to face with someone and I've got 10 bullets in the clip.
• Common Sense: Don't run in blind firing like Rambo. You'll only get shot down within a matter of seconds, and we don't want any broken controllers now.

Below are the 3 best spots to get this achievement. The video shows you #1 but just after the place I mention.

#1: Right at the start of the third mission "Persona Non Grata." Right at the start of the mission, Price will tell you to get on the balcony to the right. Do so, and look down onto the courtyard and look at the big double doors at the back.

As soon as your guy down on the ground fires a rocket at the helicopter, cook your grenade and aim for the doors. A second or 2 before it explodes, throw it. Just as it gets near the target, 5+ enemies will breach through the double doors and your grenade will welcome them.

#2: The second place to try this on is "Back on the Grid." As you make you way up to the church, don't climb the last set of steps. Cook a grenade and then walk up. As you do, the double doors will swing open and you'll be greeted by half a dozen guys. With your cooked grenade, chuck it at them and you should kill them all in one go!

#3: Finally the third spot is on the next mission "Mind the Gap." Just play through the level until you open the truck doors. You'll now be ambushed. Deal with the onslaught, and make your way through the small warehouse and out the back. You should now go through a wired gate and need to head left.

Keep to the right side and get down to where you get blocked off by a brick wall and 2 portable toilets. From here start to cook your grenade and now look across to the left corner and you'll see loads of guys run out and all group up in one place. Quickly through your grenade into the group to unlock the achievement. If you're not fast enough, the helicopter will do a strafing run and kill them all.

If by chance you miss or the grenade explodes too early, simply restart from the last checkpoint and try again.

To melee, make sure you're within lunging distance or right up close and press down on  (or if you've changed the controls ) to preform a stab.

Unless you're on a lower difficulty, the best mission to get this on is "Stronghold". Play through until you get down to the prison. At this point Price will switch the lights off, leaving half a dozen guards in total darkness. From here, you can simply walk right up to them and get a free kill. Seeing as you have your night vision and they don't, none of them will see you unless you physically touch them.

If getting this in the campaign is proving difficult, load up the first map in the Spec Ops Survival mode and you can gain 5 quick kills on the first wave.

This achievement is cumulative, so if you die the kills you previously got still count towards the total. You start the mission off with the XM25 (High Tech Grenade Launcher) as your secondary weapon, so press right on the D-pad at the start as you'll be using this for most of the mission.

Make sure that you keep it on you the whole time, since you won't find another one. Now just make your way through the mission only using this gun to kill the enemies. If you run out of ammo, swap back to your starting weapon, but don't worry as later one you'll come across an ammo crate and auto refill. If you don't have it by the end, simply reload the last checkpoint before you complete the mission and get the remaining kills.

There's a total of 46 Intel collectables throughout the campaign. Some will be in plain sight, while others may be a little trickier to spot. Don't worry if you miss one while you play, as you can return to any of the previous levels via level select.

Here's a video of all Intel locations across all the missions.

This achievement is cumulative, so if you die the kills you previously got still count towards the total. You start the mission off with the XM25 (High Tech Grenade Launcher) as your secondary weapon, so press  right at the start as you'll be using this for most of the mission.

Make sure that you keep it on you the whole time, since you won't find another one. Now just make your way through the mission only using this gun to kill the enemies. If you run out of ammo, swap back to your starting weapon, but don't worry as later one you'll come across an ammo crate and auto refill. If you don't have it by the end, simply reload the last checkpoint before you complete the mission and get the remaining kills.

In the third mission "Persona Non Grata" you'll follow Price into a cellar and be presented with UGV. For this achievement you'll need to take out a total of 5 helicopters with the UGVs grenade launcher.

You'll have a total of 20 grenades on the UVG, and each helicopter takes 2 grenades until they're destroyed. Your best bet here is to take it slow. Pressing  will shoot the minigun, so use this on all the ground units. It has unlimited ammo so don't worry about running out. As soon as you spot a helicopter, let it take its position and take your time. Once you have it in your sights press  to fire one of the UVGs grenades.

Here's the order they come in:

First one is right outside of the garage from where you take control of the UVG

• As you make your way onto the construction building, the 2nd will fly up from the right
• After the 2nd helicopter, 2 more will fly over the hills to your left
• The last one will fly from right in front of you as you get to the second construction yard

After taking control of the .50 Cal on the car, you'll be attacked by mortars. Follow Price through the alleys until you come to a small tower with two guys on top. Take them out and this is where the mortar is.

Your challenge is to take out all the oncoming enemies with just 4 mortars. Just make sure you wait until the groups of enemies have bunched up, so you can get the most out of one hit. Also, make sure you hit the cars fast before the enemies exit the car and spread out. Below is a quick guide on how to do this.

• Aim your first mortar at the 3 guys right in front of you. Wait for the car to park up, then fire.
• Look up the slope to your left and fire at the second car.
• The 3rd car will drive past the second and down to the hut at the bottom of the slope.
• The last lot again are in the same spot as the first group. Wait for them to bunch up and fire your last mortar.

Right near the start of "Return to Sender", you get to take control of the machine gun attached to the helicopter above. You'll get 3 gunning runs in this level but this is easily doable in the first one with a bit of luck. Take control of the gun when prompted and just hold down  and never let go.

Just keep aiming for all the red squares scattered about and hopefully once you've finished the first run, the achievement will unlock. If not, just wait for the 2nd or 3rd pass and you should have no trouble getting the remaining kills. Feel free to restart your checkpoint if it doesn't unlock just before or after you've finished.

A little way into the "Bag and Drag" mission, you'll be given the option to summon air-support by throwing a smoke grenade. From the point of first using it, head down the big set of stairs and head right up another small set. It's right here at the top of these a helicopter will fly over and start dropping in some enemy infantry.

Right at this point, load up another air-support grenade and throw it underneath the helicopters' location. Give it a few seconds and the AC-130 will fire off a load of bullets destroying the helicopter and unlocking your achievement.

As soon as you take control of the AC-130 at the beginning of the "Iron Lady" mission, switch to the FLIR (infrared visor) with the . You should be set automatically set to the 105mm, but if not, press  to swap between the 3 ammo options. Now if you look in the center of the circular area (use the  to zoom in and out), you'll spot 2 tanks side by side. Then look to the left of these, and you'll spot a 3rd tank moving up to them.

All you need to do here is wait for that 3rd tank to be along side the other 2 and then simply take a shot right in the middle of them all. With them being all so close to each other, the explosion of everything will take all 3 out in one go and unlock your achievement.

About a quarter of the way into the "Scorched Earth" mission, you'll be given the chance to deploy some A-10 strafing runs. Simply select where you want it to start then place the next marker where you want it to end. This is pretty easy achievement because you pretty much need to kill all the ground units and there are plenty more than 9.

When you see a group, watch where they're running to or grouping. Then quickly place your first marker ahead of them and then make your strafing run line as long as it'll go and then place the 2nd marker. Once the attack is launched, you should get some kills but it'll take a few runs to get a total of 9. For some reason, a few guys seem to survive even though it looked like they were right in the middle of the attack.

You can do this over XBL, on your own with two controllers in Splitscreen or in a Private Match with another friend. Play the first Spec Ops Mission "Stay Sharp". Once 2 people are in the game there will be a total of 34 (17 each) enemy targets to hit.

Once you've sorted out your guns (pistols work best) start the course. The best tactic here is for player 1 to go through the map killing all targets that pop up until he has 17 total (number of kills are on the right side). With player 2 following behind. As soon as player 1 has 17 kills, let the 2nd player take over and kill the rest.

By the end of the course and once all the targets have been shot down in the last room, both players will be on a total of 17 kills each and the achievement will unlock.

This could be one of those annoying achievements, but the video below shows you the best plan of action to take. During any Special Ops Survival game, you'll need to take down 2 helicopters without getting hit. Please note that being hit before your first attempt at shooting one down is okay. It's only after that you must be careful. There's multiple ways to do this but the most efficient and fastest way is by using a predator missile. One of the best maps to also do this on is "Carbon" due to its layout.

Helicopters spawn on wave 6 as well as ground units, so there's a few things you're going to need. First you'll need to save up around $7-10,000 (to be safe) before wave 6. Once wave 5 has ended, buy 2 sets of claymores then head to the Air Support Armory.

Once inside, purchase a predator missile. Before the wave starts, place your claymores around all the entry points, then wait for the helicopters to reach the map. When they do, simply fire your missile and hit the first one. Once it's down, purchase a 2nd missile with your remaining money and repeat. You must make sure NOTHING hits you after the first predator missile. If they do, you'll have to restart.

A Juggernaut will spawn at wave 10 of a Survival game. The best thing to have on you when one is about is a lot of ammo and few flashbangs.

Start out by making sure it's just you and the Juggernaut left. Now work around him and just keep hitting him with bullets. To be safe use about 2 clips then stop. From here, find something you can run around so you can get behind him. Throw a flash bang, get behind him and start slashing at him with your knife.

If he's taking a fair few slashes, put some more bullets in him. Hopefully after a few slashes of your knife you'll get the kill and achievement.

Note: You do not have to buy all the items from this Armory all in one Survival match. Purchasing these items are cumulative across all games you play, so just remember which one's you've bought. This Armory comes available at wave 2.

Below is a guide to this Armory and what costs and levels things are:

Assault Rifles: $3,000

• M4A1: Level 0
• M16A4: Level 0
• SCAR-L: Level 5
• ACR 6.8: Level 14
• AK-47: Level 24
• FAD: Level 32
• G36C: Level 39
• CM901: Level 43
• MK14: Level 47
• Type 95: level 50

Sub Machine Guns: $2,000

• MP5: Level 0
• UMP45: Level 4
• MP7: Level 13
• PM-9: Level 23
• PP90M1: Level 38
• P90: Level 46

Light Machine Guns: $7,000

• M60E4: Level 0
• PKP Pecheneg: Level 0
• MK46: Level 34
• L86 LSW: Level 41
• MG36: Level 48

Shotguns: $2,000

• Model 1887: Level 0
• USAS-12: Level 0
• SPAS-12: Level 16
• KSG 12: Level 26
• Striker: Level 33 & Costs $4,000
• AA-12: Level 44 & Costs $5,000

Sniper Rifles: $2,000

• MSR: Level 0
• Dragunov: Level 16
• RSASS: Level 29
• L118A: Level 35
• AS50: Level 42
• Barrett .50cal: Level 49

Machine Pistols: $1,500

• G18: Level 0
• Skorpion: Level 0
• MP9: level 17
• FMG9: Level 37

Handguns: $250

• Five-Seven: Level 0
• USP .45: Level 0
• MP412: Level 0
• Desert Eagle: Level 11
• .44 Magnum: Level 20
• P99: Level 40

Attachments

• Red Dot Sight: Level 7 & Costs $750
• Holographic Sight: Level 7 & Costs $1,000
• ACOG Sight: Level 30 & Costs $1,250
• Grip: Level 19 & $1250
• M203 Grenade Launcher: Level 28 & $1500
• GP25 Grenade Launcher: Level 28 & $1500
• M320 Grenade Launcher: Level 28 & $1500
• Shotgun Attachment: Level 45 $1500

Note: You do not have to buy all the items from this Armory all in one Survival match. Purchasing these items are cumulative across all games you play, so just remember which one's you've bought. This Armory comes available at wave 4.

Below is a guide to this Armory and what costs and levels things are:

Air Support Armory

• Perk Care Package
  • Quickdraw: Level 0 & Costs $3,000
  • Steady Aim: Level 8 & Costs $3,000
  • Stalker: Level 22 & Costs $4,000
  • Extreme Conditioning: Level 36 & Costs $4,000
  • Sleight of Hand: Level 50 & Costs Costs $5,000
• Predator Missile: Level 0 & Costs $2,500
• Airstrike: Level 4 & Costs $2,500
• Delta Squad: Level 14 & Costs $3,000
• Riot Shield Squad: Level 21 & Costs $5,000

Note: You do not have to buy all the items from this Armory all in one Survival match. Purchasing these items are cumulative across all games you play, so just remember which one's you've bought. This Armory comes available at wave 3.

Below is a guide to this Armory and what costs and levels things are:

Equipment Armory

• Frag Grenade (x4): Level 0 & Costs $1,000
• Flashbang Grenade (x4): Level 0 & Costs $1,000
• Claymore (x5): Level 2 & Costs $1,000
• C4 (x5): Level 3 & $1,500
• RPG-7 (x2): Level 27 & Costs $2,000
• Body Armor: Level 10 & Costs $2,000
• Self Revive: Level 12 & Costs $4,000
• Sentry Gun: Level 17 & Costs $3,000
• Sentry Grenade Launcher: Level 31 & Costs $4,000
• Riot Shield: Level 37 & Costs $3,000

This achievement is not cumulative. You must have a total of $50,000+ in your bank at one given time for this to unlock. This means while you progress through the waves, you can only do limited spending. So make sure you get what you need at the beginning, then only spend a small amount on ammo when needed.

A good and fast way to get your cash up fast is by getting the end bonuses. Make sure you get those killstreaks, headshots, accuracy kills, rampages, finish fast and take little damage etc. All these add the extra cash to your total.

A another way to save on cash is to also use the weapons the Enemy AI drop. Using these, will save you a lot of money. There's also a nice little coop trick you can do to. Start a 2 player Survival and have one of the players reach the $50k mark. Once the achievement unlocks, share all the money with your partner via one of the Armories. This way they'll get your $50k and the achievement to.

Simply start up any of the Special Ops Survival maps and complete the first wave. This is nothing too hard as it's only infantry enemies.

Please refer to "Unstoppable" for more information.

There's a total of 16 Survival maps you'll need to play here. To make it a little easier, these are best done with one other player. You may also want to note that not all of the maps are available from the start. Some require you to be a certain level within the Survival mode. By simply playing the other maps, you should have no trouble reaching these ranks. All you need to do is reach the 15th wave for it to count, there is no need to complete it.

Please note, that when you reach the 15th wave you MUST die and NOT quit. Quitting out will not register your current wave.

Maps:

Level 0: Easy

• Resistance
• Village
• Interchange
• Underground

Level 8: Regular

• Dome
• Missions
• Seatown
• Carbon

Level 15: Hardened

• Bootleg
• Hardhat
• Fallen
• Outpost

Level 25: Veteran

• Lockdown
• Arkaden
• Downturn
• Bakaara

The best and easiest map to do this is on is "Milehigh Jack". As it's quite short and not much room for the enemy AI to maneuver, it's the perfect place. I'd start out on a lower difficulty to get where people spawn, and what's best when.

Just be on your toes, and using your flashbangs is a must. The only hiccup in this level is the timer, but once you know what you're doing, it's a breeze. For more helpful info on some Veteran tactics please see the "The Best of the Best" achievement up top.

Please refer to "Overachiever" for more information.

Please refer to "Overachiever" for more information.

There's a total of 16 Mission maps you'll need to play here. To make it a little easier, these are best done with one other player. You may also want to note, that not all of the maps are available from the start. Some require you to be a certain level within the Missions mode. By simply playing the other maps, you should have no trouble reaching these ranks.

The Missions mode is split into 3 difficulties and each one offers there own * rank. The higher you go the more *'s you'll get upon completion. So to gain this achievement, you'll need to play and complete all 16 Missions on the Veteran difficulty.

Regular = *
Hardened = **
Veteran = ***

Maps:

Tier 1: Level 0

• Stay Sharp
• Milehigh Jack
• Over Reactor
• Hit and Run

Tier 2: Level 5

• Toxic Paradise
• Firewall
• Fatal Extraction
• Hostage Taker

Tier 3: Level 10

• Charges Set
• Resistance Movement
• Little Bros
• Invisible Threat

Tier 4: Level 15

• Server Crash
• Smack Down
• Flood the Market
• Fire Mission

Stay Sharp SOLO 3 STARS

Milehigh Jack SOLO 3 STARS

Over Reactor SOLO 3 STARS

Hit and Run SOLO 3 STARS

Toxic Paradise SOLO 3 STARS

Firewall 3 STARS

Fatal Extraction SOLO 3 STARS

Hostage Taker SOLO 3 STARS

Charges Set SOLO 3 STARS

Resistance Movement SOLO 3 STARS

Little Bros SOLO 3 STARS

Invisible Threat SOLO 3 STARS

Server Crash SOLO 3 STARS

Smack Town SOLO 3 STARS

Fire Mission 3 STARS

Please refer to "Skilled Negotiator" for more information.

Please refer to "Skilled Negotiator" for more information.

Please refer to "Ice in Your Veins" for more information.

Please refer to "High Roller" for more information.

Please refer to "EMPressive" for more information.

Please refer to "Sub Zero" for more information.

Please refer to "Pinnacle" for more information.

Refer to "Deliver This" for more information and a video walkthrough.

Check the video below for a walkthrough for this achievement.

Make sure to call in each of the care packages during the mission. The care packages are a Self-Revive perk, Sentry Gun, and XM25 Grenade Launcher. You must purposely allow yourself to go downed, in order to use the Self-Revive. Also, you must get at least one kill with both the Sentry Gun and MX25 before completing the mission

Refer to "Untouchable" for a video walkthrough.

Check the video below for a walkthrough for this achievement.

Refer to "Lights Out" for more information and a video walkthrough.

Check the video below for a walkthrough for this achievement.

Check out the video below for a walkthrough for this achievement.