Lorne Balfe - Domination
I quite liked this simple tune the first time I heard it in the Single player, but think I've become obsessed with it through positive reinforcement... The tune always plays whenever ya team's taken control of all three points in a Domination match, which is a rare (and thoroughly exciting) moment. T'is always a rush to see your team instantaneously scatter off towards the other points t' desperately try and hold the Domination as long as possible.
Also, unreleased music from OSTs pisses me off since said tunes are a right pain t' find.