[WIP] More progress on EXTREME OVERKILL Weapon Pack, again

More & more new weapons are coming in, and the old ones are given a shiny new look too.

• Bolt Pistol, because GTA:SA needs more taste of Warhammer 40K. Replaces Desert Eagle.

•  Dakkagun, WAAAAAGH!!!!!!!!!!, but still not enuff dakka. Replaces minigun.

•  PPSh-41 without stock, as doing a drive-by with the stocked one looks awkward. Replaces MP-5.

•  New scopes for KORD & Gauss Revolver