Rockstar have already released some free Max Payne 3 multiplayer DLC titled "Gorilla Warfare." The free DLC is available for Xbox Live and PSN users.
The free DLC forces players to wear a gorilla mask and other accessories for extra benefits. The mask earns players extra adrenaline for melee kills from behind. The DLC also comes with a lucky coin, which gives players extra money for looting bodies, and a booby trap item that makes players' corpses explode when looted.
You can get the Gorilla Warfare DLC and more with the Rockstar Pass, which gives players all the Max Payne 3 DLC for just $30.