Additional classes won't be added (at least not in the near future), but maybe we'll rework the SWAT class, since that is the least used one. But that won't be for any time soon.
Its taking 3 years to do 30 minutes of work.
The give armor command can be done too with the proper pawn codes.
(ifplayer near) (ifplayerhasarmor 50) (giveplayeridarmor 50) (takeplayeridarmor 50) (ifplayerarmor 0) (you dont have any armor)