Gears of War 3: Forces of Nature

If you own Gears of War 3 Season Pass DO NOT purchase this content here as you will be charged again. This pack adds five new multiplayer maps, each featuring unique weather conditions: Aftermath (Flooding City), Artillery (Tornado), Cove (Fog), Jacinto (Rainstorm and Imulsion), and Raven Down (Snowstorm). Also included are 250 Achievement Points and four new multiplayer characters; the Savage Hunter, and new variants of Commando Dom, Mechanic Baird, and the Savage Grenadier Elite.

Source:

xbox.com