Taking inspiration from Condemned: Criminal Origins, tool-weapons should also serve a secondary purpose.
The sledgehammer or axe can break down a barricaded door. Noisy, and takes half the durability of the weapon.
A crowbar could pry open any locked container.
Another one is the 2 handed firearms, although not being able to be used with full-melee capabilities, guns like the rifles, and the shotguns should give us a chance for a loud, but effective stealth kill from the back.