Are you getting sick and tired of the same old Call of Duty formula year-in and year-out? Are you ready to visit new places and violently murder new people? Well then, try this one on for size: space marines. You know, like normal marines, but in the future and, well, space. Still not ringing a bell? Think Master Chief from Halo. He's pretty much the king (or outer-space equivalent) of space marines. However, if Activision has its way, that may not be the case for too much longer.