Played a Custom Speedlist you created (Multiplayer)
Start a multiplayer game by selecting "Create Friends Game" from the Easy Drive menu. Then, select "Speedlists" from Easy Drive and edit 5 events into a custom speedlist. Next, invite a friend as custom speed lists can only be played in friend games.
Once you have someone in your game, start the custom speedlist you just created. You'll first be required to go to a meetup point, and once everyone is there, the event will start. Winning doesn't matter, so just play through to the end of all 5 events where the achievement will unlock.
A quick method is to create a custom Speedlist and selecting the "Arch Angels" challenge 5 times. It's a Park Up event, and it takes place the same place as the meetup. Because of this, you can sit in one spot the entire Speedlist and complete all 5 events without any effort. The event takes about 30 seconds each time.
If anyone still needs this one just let me know. Try to have a simple speed list ready to go. I still do not have this one so if I help you get this one I hope you can also help me out if you have time.