This is the extra chapter of Zombie Scenario Season 1 where the players face all the bosses from the season. In this map, the players face the Juggernaut in Round 1, Siege Type Deimos in Round 2, Prototype Phobos in Round 3, Siege Type Phobos in Round 4 and Oberon in Round 5.
SKULL-1 holds 7 of the special 50 calibre rounds for each magazine. It is a light-weight pistol and possesses a fast reload time and has two firing modes; semi-auto and full-auto fire. In the semi-auto fire mode, it possesses a higher accuracy and more damage. In the full-auto fire mode, it possesses a higher rate of firing. The special bullet developed by the government can give critical damage to zombie with its high penetration rate.
Skull-7 holds 120 rounds each round with special 5.56 mm bullet. To improve its accuracy in mid-long range, it is designed based on a structure that can reduce counter-attack while firing. The special bullet can give critical damage to zombies with its high penetration rate.