Old gmod(?) series

hey im just here to ask if anyone can help me find an old gmod, possibly something else, series i remembered it while talking to my brother, but it takes place during sonic generations i remember a few details classic sonic was forced into playing boyfriend with cream by cheese, who is possessed by/an incarnation of doom, rouge hates sonic because when he beat eggman using the chaos emeralds, and the emeralds were lost, people fought to claim them for themselves and her parents were killed during a fight over one, resulting in G.U.N. recruited her and Eggman had a nephew who worked with G.U.N. who made a robot to combat sonic near the end.

I know its a long shot but I'd appreciate any help in finding this series.