Until the 24th it’s only Team Death Match on maps Thrashball and Checkout. When it’s the 25th King of the Hill gets added, and then Capture the Flag May 2nd.
Gears of War 3 is due for exclusive release on Xbox 360 later this year. Below is the schedule for the multiplayer beta, which you could be in right now if you went Epic with Bulletstorm, as otherwise you need to twiddle those thumbs until the 25th.
April 18 - 24: TDM on Thrashball and Checkout
April 25 - May 1: TDM and KOTH on Thrashball, Checkout, and Trenches
May 2 - 8: TDM, KOTH, and CTL on Thrashball, Checkout, Trenches, and Old Town
May 9 - 15: TDM, KOTH, and CTL on Thrashball, Checkout, Trenches, and Old Town
