So... I don't really know if this is a new or a legacy faction - because these are troopers of a new faction that were corrupted by a legacy faction and now serve them. I'll leave it to Quantum and the judges to decide.
This battle pack focuses on some of the Aton System Authority's troopers, who were corrupted by demonic forces while exploring an alien temple on the icy planet of Frysa-11.
Zombie Security
The most common type of Zombiemen are former Security personnel. These are mostly just possessed former minifigs, with no major mutations (other than their zombiefication) being made by their demon masters. Many of Aton's Security Soldiers on Frysa-11 were carrying portable mining lasers (left) or pulse rifles (right) when the planet was taken over by Hell.
Zombie Sergeant
Higher ranking Soldiers sometimes keep some of their mind intact when turning into unwilling servants of hell. This makes these Sergeants a lot smarter than their braindead breathren. They also tend to carry slightly stronger weapons, like this shotgun-esque Sonar Atomiser.
Commando-Zombie
The former commando troopers carry around much heavier weaponry than the basic security soldiers. This one carries a OTC - orange transparent chaingun. As some of the more powerful Zombies in Hell's army, Commandos often receive some additional mutations, like demonic tentacles growing from their arms that they can use as whips.
Sabaoth - former Colonel(Hero)
Former Minifigs who played a central role in hell's invasion of a planet back when they were alive often receive special treatment from their new overlords. This Colonel was given a new, powerful, cybernetic body - being merged with one of Aton's exploration rovers. The Sabaoth is equipped with a (removeable) Biodium Force Gun 9000, a powerful plasma cannon powered by the Biodium-Crystals Aton is mining throughout the Brikverse
