Ubisoft has just announced that the Animus Project Update 1.0 (DLC Pack 1) for Brotherhood will be free of charge.
The DLC will feature a whole new game mode and a map.
The new Advanced Alliance mode will be just like the original Alliance Mode but the target identification and engagement will be much harder.
Ubisoft said that teams who use stealth techniques to kill their targets will get various rewards.
In addition, there is a new map called Saint-Michel, which is located on the French island Normandy, and will feature buildings like a bell tower, accompanied by many narrow streets in which players will have to navigate through.
The DLC is due out for release on December 14 for the PS3 and 360.