Atlas is an action-rpg with rogue-like elements where you use your ability to control the ground to fight the enemies and move through procedurally generated worlds.
Onslaught is a cooperative game-mode featured in Battlefield: Bad Company 2 as downloadable content, putting four players against enemy AI on redesigned variants of Valparaiso, Atacama Desert, Isla Inocentes and Nelson Bay, each having their own dedicated gameplay focus.