H4's core mechanics are still solid, and there have been a lot of fixes put in that have improved the gameplay. I can't believe I'm defending it right now, but to say it's not Halo is a joke. I'd argue that it's a broken Halo that has no idea what it wants to be or how it wants to go about doing what it thinks it wants to do. Aka, it has issues. A lot of them. Still does. I'm hardly sure if 343 even takes some of these "fixes" seriously (X's), or if they even test anything before adding/changing/doing. Regardless, the multiplayer is definitely much better now than it was at launch. You should try it again. Even if you still hate it, I guarantee you it's nowhere near as awful as it was when it launched.