Hmmm, I really want to use this mod, but I'm not sure that we can fill a fire extinguisher with only a bottle of water, you need a lot of stuff and skill (and maybe some chemicals). It could be more realistik to convert your extinguisher in a consumable item which produce an useless junk. With that the item will become more precious and play with molotov still harmfull. And with the .32 build, you can also ad an enginering book to learn a recipe like : Gaz bottle, water, Extinguisher(empty) > Extinguisher(full) ?