: Different mods and weapon classes have varying "Penetration Values" (ranging from Low to High), determining how many zombies a single bullet can pierce.
: Players can customize weapon appearances with various skins in the Armory .
Upgraded weapons (also known as "PaP'd" versions) feature specific functional changes: Project Lazarus | Gun Mods
: Perks like Mule Kick (4,000 points) allow players to carry a third modified weapon, further expanding tactical options.
: The weapon is renamed and often gains a new visual appearance. Notable Weapon Modules : Different mods and weapon classes have varying
: Every upgraded gun gains a specific Pack-a-Punch Module that adds a unique gameplay effect.
: Significant boosts to damage, range, magazine capacity, and reserve ammunition. : The weapon is renamed and often gains
: Certain weapon sets, like the Glock Expansion , are available as game passes and introduce new variants to the loot pool.