Overview:
-Estimated achievement difficulty: 6/10
-Offline: 11 (190)
-Online: 1 (10)
-Approximate amount of time to 200: 20 hours
-Minimum number of playthroughs needed: 1
-Number of missable achievements: None!
-Glitched achievements: None!
-Do cheat codes disable achievements?: No cheats
-Does difficulty affect achievements?: No

Although the story is not hard, it is rather long and repetitive. Completing the story should be no problem but Boss Blitz mode and Survival mode may be a little frustrating.

Introduction:
Welcome to Heavy Weapon, a fun but repetitive game that only requires the mastering of the , and , since they are the only ones you use while playing. The game has 12 achievements for a total of 200. Of those achievements, 6 or 7 can be obtained by completing the campaign (If you read this before actually playing). The remaining achievements are obtained by meeting certain time requirements in Survival mode, completing Boss Blitz mode and by playing the multiplayer, both locally and on LIVE.

Step 1: Campaign
In this step we will cover all story-related achievements, including the annoying Cannon Happy, which requires us to complete 11 missions without firing a single nuke or dying. Unless its absolutely impossible for you to hold the urge to fire a nuke and receive an awesome 10, then by all means fire one off in the 1st mission then quit and start again (I couldn’t help myself either… it is rather tempting no?). If you die during your run for Cannon Happy, don’t panic, just allow yourself to be killed two more times and select continue which you are allowed to do and continue on. Knock this one out on the first eleven missions since they get harder and longer as you progress in the game. You will be required go through each level twice and the final boss battle for a total of 19 missions. Keep in mind that the 2nd time you go to a country (Example: Mission 10=Mission 1) there will be more enemies and the bosses will be stronger. The Stockpile achievement will come naturally so don’t worry about not having enough points. After this you will have unlocked the following:

Big Red Button, Supaweapon!, World Tour, Stockpile, Cannon Happy, Ultimate Tanker and (if you went for it) Massive destruction. For a total of 115.

Step 2: Survival mode
For the two Survival mode achievements all you have to do is hold out until the 12 minute mark, netting you the Cockroach of Freedom (8 min.) and the Champion of Freedom (12 min.) achievements for a total of 40. If you did not get the Massive Destruction achievement during the campaign this is where you will most likely be getting it. Little troublesome, but doable.

Step 3: Boss Blitz mode
Most likely the hardest achievement in the game. Patience and memorizing the enemies attack patterns is key here. Make use of the strategy guide located here if you need any additional help. Thanks to Xdaamno for writing and to Mulsiphix for posting it! Beat it and obtain a sweet 25.

NOTE: It is advised that you save your three nukes for the final boss, since his beginning lasers can destroy you with one hit .

Step 4: Multiplayer
For Joint Command, simply use a second controller and kill at least one enemy with it and finish any of the campaign missions. Be sure to use the Achievement Trading Thread here for the ComSat Uplink achievement, which requires 4 players (including yourself) and 1 minute of LIVE gameplay. Net these two achievements for your remaining 20.

Conclusion:
By now you should have your 200. If you are missing any, please make use of the guide below and the Achievement Guide Discussion thread. Other than that it just takes practice and patience.

[x360a would to thank CienPR for this Road Map]