Horde Mode in Gears of War 2 was pretty fun. Fighting wave after wave of enemies with three of your closest friends is always a good time. But Epic was all like “What’s even cooler?” How about playing as waves of bad guys trying to kill the good guys? Pretty awesome. There’s a level up system that allows players to unlock higher level bad guys as they gain more experience. And just because you’ve unlocked, say, the Berserker doesn’t mean you can start the round playing as one. You use tickets, gained from killing COGs, to choose which type of enemy you want to spawn as. The tougher the bad guy, the more tickets it costs.
I don’t know why they didn’t have it as four humans playing the COGs vs. four humans playing as the Horde, which would take it to 11.