I have been using this class for the past 3 days now and it is really fun to use mainly on S&R or S&D.
Riot Shield + Portable Radar
P226 + Akimbo
Throwing Knife
Blast Shield
Strong Arm
Extra Lethal
Scavenger
Reflex
I have been making people rage, and send hate mail, and trash talk all day with this. Apparently I am a scrub because I hide behind shield and throw a knife at people dumb enough to run in front my shield an challenge me. They don't even strafe nor do they try and use explosives...
Side note: I do not use C4 + DC to my advantage with this, I only use a throwing knife. IMO it is much harder and takes a bit of skill to do.