Hitscan only-Autoaim like in Duke 3D

[StroggVorbis]

In EDuke32 at least, there's the option between no autoaim, full autoaim and autoaim for hitscans only. If this could be brought over to GZDoom, it would be the best of both worlds. Autoaiming for projectiles is always hit and miss, no pun intended, especially against flying monsters that receive knockback. Since autoaim targets where the enemy currently is and projectiles aren't instant, this makes it impossible to lead your shots, especially with grenades that are subject to gravity.