The music in Cod4 was probably my favorite in the newer titles(WaW, MW2, MW1 etc.)
For Black ops, I think music in multiplayer matches should play throughout the whole match...not just the beginning or end.It should change tracks bases on wat is happening in the match(winning, losing, dying etc.)
Also the radio chatter in Cod4 for the marines was probably the best in the newer titles and should be added for the multiplayer announcements for the american teams (maybe even british too) just like in Cod4.
I like the idea, however, I wouldn't want music playing all the time. Perhaps at certain, dramatic spots during a match (EX. When enemy destroys/captures objective). Of course, there has to be the option to turn it off.
Music all the time would bug the crap out of me. I got turtle beach headsets and if music played all the time I would ruin my gameplay. Music at certain times is ok. Like in MW2 if an enemy is close, soft music starts to play. It's a good way of knowing who's by you when you can't hear there footsteps, if there using ninja pro. But what I want is character comments. Meaning: when you kill someone you're character makes a smart ass comment, you hear it and the person you killed hears it, not everyone. Would be awesome killing someone and you get a headshot and your character says " right between your eyes mother f@cker!!" I hope there is cussing in the game.