Reduced Fallen Survivor and parachutist spawn ratio to avoid some crashes

reduced tsaa, baggager, pilot and tweaked some extended infected to be more realistic

updated addon info.

improved stability with custom campaigns

Update: tweaked riot infecteds, imrpoved l4d1 urban variations (riot,firefighter,etc)

reduced riot and tssa agents

less riot and sanitization, more hoodies and militia

Added fisherman near ports/swamp, added fireman(l4d1) to spawn pool, added female hoodie, improved female/male spawn ratio, increased fireman in fire places.

Added l4d2 Workers

Added Firefighter infected