0 Day Attack On Earth Cheats

Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Enlistment (5 points): Enter the Main Menu.
Crucible (5 points): Clear the game on Normal in single player mode.
Onslaught (5 points): Clear the game on Hard in single player mode.
Wings of Friendship (5 points): Play a CO-OP Mode game.
Sandwich Man (10 points): Kill 10 Sandwich enemies.
Snake Killer (10 points): Kill 10 Snake enemies.
Mosquito Killer (10 points): Kill 10 Mosquito enemies.
Valiant Warrior (20 points): Kill 100 targets in CO-OP Mode.

Additionally, there are four secret achievements:

Secret achievement (20 points): Unknown.
Secret achievement (30 points): Unknown.
Secret achievement (30 points): Unknown.
Secret achievement (50 points): Unknown.