In addition to the four new multiplayer maps, the Onslaught DLC Pack includes the Maverick RM-22 weapon, a dual-purpose Assault Rifle/Sniper Rifle. Players can access this weapon from the loadout menu like a normal weapon after it has been unlocked, choosing it from either the Assault Rifle sub-menu or the Sniper sub-menu in order to include the gun in a loadout.

Players who do not purchase the Onslaught DLC Pack can still use the Maverick RM-22 by picking it up off the ground after being dropped by a killed player. In this scenario, these players will accrue stats towards unlocking camos for the Maverick RM-22. However, these players will not be able to add the Maverick RM-22 to loadouts or apply camos until the DLC has been purchased.