Infestation Mode is a co-operative multiplayer survival mode that comes with Red Faction: Armageddon. It is similar to Gears of War 2's "Horde Mode".
Gameplay
Infestation mode can be played alone or up to 4 players. The players are tasked to go through 30 waves of killing Plague and surviving.
Customization
Players can change their avatar appearance and emblem look.