After the Free Update patch, this item becomes a free default item in all player's inventories.
When using this set, the player can deal 30% more attack damage to zombies as default damage and can be increased to 230% (purple) when Morale Boost increases.
When turning into a zombie and killed, the player can revive almost instantly.
After 12 March 2015 update in South Korea.
This item is only available for Zombie Hero mode.
- Humans: Players can do more damage to zombies depends on their range with zombies.
- Zombies: Players will revive instantly after dying as a zombie with an exception of head shot.
This set was released alongside Zombie: The Hero and Double-barreled shotgun on:
- Singapore/Malaysia: 21 December 2011.
- Indonesia: 15 February 2012.
- Turkey: 20 November 2013.
This set was released alongside Open Beta Test and other zombie sets on:
- CSN:Z: 23 September 2014.
- Vietnam: 26 March 2015.
- In Indonesia region this item is named "Combat master".