I'm a firm believer Resident Evil 5 was one of the best COOP games of last generations, regardless of people crying "teh survival horror oh noes!".
I played 6, which was shit but not as bad as people made out.
And then Operation Raccoon City, which my freind swears is a uncredited gem (but is actually shit).
Unfortunately the terrific, ahead of it's time Outbreak series has went under the radar, probably never to get a Remaster.
Although I never bother with it, alot of people love raid mode.
Do we want more Resident Evil co-op experiences in the future?