That depends on who wants to use them.. Since you're adding them, you need to edit .xtbl files (items_3d, items_inventory, store_weapons, weapons) and preload.tbl. For gangs to use them, you need to edit "spawn_info_ranks.xtbl".but, is this replacing weapons or adding them?
Keep in mind one thing, the more you add weapons or items in general, more unstable your sr2 will be. You can blame items_3d and preload.tbl for that..
