Well, i like to play co-op maps with my friends, we are using this mod to replace ♥♥♥♥♥♥ hl2 weapons. But. The enemies on these maps are using default hl2 weapons, which are actually underpowered I guess... There are mods that add a lot of weapons exclusively for NPCs, but they are not working on the maps obviously.

So here is my idea: NPC Weapon replacer. I think it is possible. There is a mod called "Extended properties" which actually allows to replace weapons on NPCs via context menu, but replacing every single npcs weapon manually is going to be a long and tough task. NPC Weapon replacer will replace their weapons at your own ones just like this mod does. Basically, the mod looks for all the npcs on the map, finds their weapon and giving them another one, which is defined by the player.

How about that? Again, i think it is possible, because Extended Properties mod can replace their weapons.