- last post: 01.01.0001 12:00 AM PDT
If you want to beat Library on co-op, just play by yourself or with someone else and send in one guy at a time. He'll kill as many flood as possible and when he dies, he'll come back next to the other guy (who should be in a safe position away from the battle). Then, the second guy goes in and does the same thing. It takes time, but you can eventually work your way through the level. The only time this doesn't work is when 343 Guilty Spark traps you between the two doors. Just try to stay in one of the crevices close to the door. I survived that part just by luck (to me, it's the hardest part of the entire level)