Collected 5 3D glasses

Completed all missions in Secret Armory

You completed "Rescue Carmona"

Finish waves 1 through 30 on any map in Infestation.

Finish at least one wave on each map in Infestation.

Eliminate 10 enemies using one of their own turrets. (Downloadable Content)

End the three-way battle between yourself, the aliens, and the Cultists. (Downloadable Content)

Get 20 kills with the Sharpshooter. (Downloadable Content)

Get 20 kills with the Shard Cannon. (Downloadable Content)

Rescue the pinned-down Red Faction soldiers. (Downloadable Content)

Finish the Single Player game on Hard Difficulty.

Buy every Upgrade.