To install the mod just open the rar and drag and drop the NerfedWeaponPack folder into the mods folder
This pack just simply changes the damage of every gun to 1 making them basicly useless.
(Disclaimer: Not every weapon is in it because the game doesnt really like that, it doesnt start so therefore the throwables and melee knifes still do the same damage aswell as bows and flametrowers i believe. Guards are also killable because they have apearently like 1 hp. And it was meant to be so that you couldnt use guns against guards but i geus its just as is. I could change the damage to 0 but ill look into that later.)