[quote=The Nexerus]
In the third game, much of more animal-like Chimera become feral. Essentially, they're wild, having climatized to Earth and no longer being under the control of the Chimeran military structure. You see a lot of feral Chimera fighting Military Chimera throughout the game. I'm not sure if it'd be right for this setting, though. The third game is basically post-apocalyptic, with the American military having been completely destroyed.
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That could be something that is rumoured, and then later on introduced? I don't think it'll necessarily have any negative effect on the RP if they were in it, not sure what everyone else thinks, but I don't think they'd take away from it by any means, so I'd be cool with it.