Im using the Origins round change music and they are slightly longer than stock, so when a round ends, the music is still playing and the next round start music doesn't play until about 5 seconds into the round due to round end taking longer to finish, is there a way to simply add 4/5 seconds to the delay between rounds so I can solve this problem?

In _zombiemode.gsc:

	set_zombie_var( "zombie_between_round_time", 		10 );
	set_zombie_var( "zombie_intermission_time", 		15 );

You can find these at line 521.

Wonderful, thanks