I've been trying to figure it out...
Cobra Trooper rifle, Rock 'n' Rolls machine gun, Stalkers s.m.g. & Grunt's M-16 are, as far as I can think of, the only 1982 G.I.Joe weapons that weren't available (in some shape or form) in the 1983-84 A.F. line up.
Short-Fuze's Mortar, coloured red, was part of the Enemy Battle Gear pack as was Zap's Bazooka (which also came with the Red Shadow figure)..
I think we got all of the 82 Joe vehicles, as re-paints, in 1983.
The JUMP pack was issued (in red) with the Q-Force commander, along with a rubber band to strap it onto him, but we didn't get either its landing platform or gun attachment.