Captain Allister, the leader of the 11th Lemurian Executioner squad, one of the 11 most renowned and elite squads in the empire. It's members consists of battle-hardened super soldiers and high ranked officers from the army.
The squad is tasked with the deadliest missions in the universe, often leading to almost impossible situations. But nevertheless, they emerge victorious all the time, without much struggle thanks to their supreme technology, equipment, vehicles and cunning tactics.
Allister wears the best possible gear available to any soldier. His suit is fused with an experimental EXO core, the one used in the lethal EXO suits, allowing him to use two built-in EXO blades in battle. Like any other lemurian soldier, he is equipped with tough xenolith armor, active camouflage, a teleportation kit, personal shield generator and advanced targeting optics.
He mainly uses his dual pistols, but also carries a rifle and a sword as well.
Aside from most people, the killmarks on his armor are not the number of the enemies defeated, rather the number of worlds his squad has conquered.