Suspension (assault)
Completed on: Veteran

Easier with two players but possible with one. Take a sniper rifle and start sniping your way to the end of the bridge. Once you’re there and Shepherd radios in an enemy gunship, stay on the lower level (hopefully, you have a rocket launcher) and down it as it winds up. We found it handy to use one player to stay on the ramp (next to the wreck) to lure the gunship into hovering so the second player can kill it. The ramp also serves to have grenades roll down so they don’t kill the decoy.

Once the chopper is downed, use sniper rifles and scoped rifles to take out the rest of the enemies (slowly) from the ramp or barricade nearby. There are a limited number of enemies, despite the number of them appearing. Once things quiet down, you can simply walk to the green smoke and get congratulated by Gaz (who’s really just Ghost — they both have this weakness of being shot in the head).