Ten million kills have been counted and Assault mode is unlocked. It takes place on the same maps. The difference now being that one team starts off with control of the points and the opposing team keeps the point if they capture it. If the defending team has one point left, that starts sudden death for the defenders. Assault matches are faster, five minute affairs which is a welcome change from how long Conquest games can be. For larger matches, the defending team will have to defend four capture points which I think is a bit much. Oh, and Assault mode can be played offline as well.