Apparently Canada can't take a damn joke. One of my BEST friends is from Quebec. Fuck man, nobody can joke around here anymore without someone getting pissed off.
As for Miscguy, 11B is regular light Inf. ( ei 10th Mountain, 1st ID, etc), 11C is Armored Inf. ( ei 3rd ID, 1st Cav. Div. etc), 11X is recruit for infantry, not yet combat ready infantry. I think thats how it goes

Airborne (for 82nd) is an extra school for Infantry to volunteer for as is Air Assault (for 101st) or Ranger School.