In Resident Evil 6, the zombies are getting smarter, which probably means there’s also a convoluted explanation in the offing. Next to deadlier zombies, RE6 introduces the J’avo, the game’s equivalent of the head-popping, plaga-virus-infected sprinters that menaced us through the last two games. Except the J’avo sound even nastier, capable of communicating and tactically coordinating with each other, regenerating when injured and using the same sort of advanced weaponry you can. Multiple characters and partners, globetrotting, solo or co-op play — Capcom’s loaded up its sixth mainline Resident Evil like a jumbo-sized undead piñata.