I'll have to check on the details, but in the new OXM they say that there will be new DLC coming for this bad boy in March. It will include 10 new maps and 2 new gametypes.
PRESIDIO will be one of the maps

.
The new gametypes are Assassination (where one player needs to be protected and is only armed with a pistol) and some sort of headquarters type of game.
Sorry so vague, I've had a helluva week. I can't wait for this to drop.