As much as I enjoy the Freedom Fighters, they simply would not work in the series for the reasons stated already. I understand the argument that it could be a spin-off series like Sonic Boom, but the problem I see in having multiple continuities is inconsistency. It's something that works in comics having multiple univereses and all but I don't think it'll translate well to video games (at least, not with Sonic). For this reason I think it would be a bad idea to incorporate the Freedom Fighters into the Sonic game universe.
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