SA/Situational Awareness - When standing still, press the up button to see nearby enemies through walls. (Think Ping with a bigger range, but you couldn't move).
Break Up - Increased damage to breakable objects.
I kinda liked Break Up, it was funny when a player would take cover on breakable objects, but then they'd be exposed before they could heal. Monkey Man in UC2 was worse, only worked if you climbed a ladder without pressing X to jump, which slowed you down even more, and there were like, only five maps with ladders, and most were useless.