[quozl]

I like Protect and Serve and I like Action Reflexes.

I agree with Guard. If you really want to do a third power, I think Engagement Strike would work great for him or change Security Tactics a bit so it's offensive, not defensive:

SECURITY TACTICS
When Aaron Cash attacks an opponent's small or medium Unique Hero, before rolling attack dice, you may declare you want to remove Order Markers instead of inflicting wounds. If you do, remove one unrevealed Order Marker at random from that Unique Hero's Army Card for each wound you would inflict with Aaron Cash's normal attack.