Halo CE has the worst campaign internet connection ive ever seen. Worse than Gears 3 online. They ruined this game for me and i will never forgive 343 for the amount of stress this has caused me. Ive fought the Keys mission almost 4 times now but cant finish due to inexcusable lag. This unfinished online campaign should have never been released, and the people who created this should be forced to live in mexico and play their abominable co-op with eachother using a dial up connection for the rest of their lives. Still a fan, just very let down.