Mod replaces the old hammer, knife and dagger into new weapons in apocalypse style.
You can buy em in Ammu-Nation.

Hammer -> Tomahawk
Knife -> Butterfly
Dagger -> Karambit

Installation:
Run OpenIV and use Edit mode.
Replace all files from:
update> x64> dlcpacks> patchday3ng> dlc.rpf> x64> models> cdimages> weapons.rpf
with files from mod (of course with the same names).

Have fun!
Rosman