NO MULTIPLAYER. This completely ruins the game. Do they just not have what it takes to make this game multiplayer? Frankly, I'm pissed off that I went out and bought this game immediately when it came out, and then realized that there was no multiplayer. They should at least have LAN support for it.
I will never buy another Bungie game again if they don't hurry up and put out either a patch with multiplayer support or at least an expansion pack. If they purposefully waited for the expansion pack to put out multiplayer, that's just darn rude if you ask me, but that's the way the corporate world works.