Resistance 3

i have enjoyed the resistance series, the first one had its charm and a good narrative. One aspect the second one came up short on was it didn't include co op. which was a shame as the first was one of the few good quality co op experiences.

R2 does have co-op, though perhaps not what you might consider classic co-op (team based, red vs. blue japes) Instead they're 8-player co-op campaign missions.