This is Warsoup. Do I need to tell you anything more? It's a game called Warsoup! Oh, and it is a combination of real-time-strategy and first-person shooter. Development studio Moon Games suggests this could be StarCraft crossed with Halo.
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The game appears to be coming out on the Xbox 360, PS3, PC and Mac and maybe a few browsers? Hard to say, but enjoy the clip.
Warsoup - First Introduction [YouTube, via Twitter]