Multiplayer never gets old .... EVER ... :)
The multiplayer I find pretty fun .. It's a fun game to go into private chat with a buddy and mess people up. I don't recommend the ingame audio because it only works about half the time and when it does they only heard half of what you said. I blame it on the crappy EA servers you're forced to use.
Anyone who has played the computer version of the game will probably hate it. There's less people and weapons. Even with all the downs, I still rank this up there. This is in my top 5 multiplayer games of all time. Gears and Halo being top 2.