Hey everyone, I'm also trying to platinum this game. Just need some help with the co-op missions, damn trophies won't pop for me in public lobbies! If anyone wants to group up and do them add me! My psn ID is the same as my username here.
Only have a few SP trophies left and only beaten the first map on co-op (and even that took a long time in public).
If it helps, my time zone is central, I usually play at anytime of the day depending on my work schedule and other real-life stuff going on. --- PSN: CaptainJeff87 (please say Gfaqs in friend request msg)