Have you seen the movie Retribution? That movie seriously has no idea what it wants to be aside from terrible and lazy. It's like The Matrix, Total Recall, Terminator, The Clone Wars and the first Resident Evil movie all combined into one, big, confusing, pointless, boring mess.
After you see how unoriginal that tripe is, any similarities that RE6 has with anything can be pretty much forgiven. --- Yo Sephiroth, I'm really happy for you, and imma let you finish but Kefka Palazzo is the best Final Fantasy villain of all time.