Onslaught mode brings four-player co-op to four repurposed and revamped multiplayer maps, hitting Xbox 360 and PlayStation 3 today for $10 (800 Microsoft Points). It remains uncertain whether a PC edition will be released, due to concerns that the multiplayer community might be harmed by 24-player servers switching to the four-player mode.

A Bad Company 2 multiplayer "digital expansion" set in Vietnam was announced by EA during E3, scheduled to be released some time this winter at a yet-unknown price.