Weapons do not usually make very loud swooshing sounds when swung.

However, I agree there could be some slight variation in some sound effects,
but I think this probably could be achieved by adjusting the pitch of the sound effect.
Of course, the amount of channels available does limit the amount of battlefield noise somewhat,
but it would be nice to have people yelling and shouting there.
At the moment they seem to be a bit quiet.
I like the vanilla sounds, too, though. They are functional.
But I agree that some more variation could be added to add polish.
But then again, it has been a BETA until now.
BETA versions don't usually have everything implemented yet.
Looking forward to the release version.
-SoanoS-