a) Offset_rgAmmo - to increase/decrease player ammo b) wpnmod_draw_explosion - to draw explosion.Explosion should be customizable. Also I think need to add there +smoke(optional), +decals(optional), +fix explosion sprite(current sprite sometimes is drawn half in the wall(you can see it in my plugin :( ) c) Add something like Fwd_Wpn_AddToPlayer - so its possible to hook that moment.