Summary pulled directly from Steam - Some text may only be applicable to Steam platform

Deep within the Cheyenne Mountain military complex, mutant cults worship an ancient deity they call the Holy Detonation—a nuclear explosion held in stasis. Whether god, science experiment, or accidental miracle, the Detonation's energy could power Colorado Springs for hundreds of years, or level it in an instant. The warring cults have differing opinions on who should be allowed to honor their god, and you’re going to have to muscle your way to the altar. It’s one last mission for the Rangers in Colorado, and the outcome is certain to be explosive—one way or the other.

End-Game Challenge

Expands the base game with Cheyenne Mountain, crammed with new characters, enemies, challenging combat encounters, and powerful new weapons and armor.

New Combat Goals

Your squad of Rangers will be tested like never before in objective-based encounters that put a creative spin on the already deeply tactical turn-based combat.

Overwhelming Odds

The Rangers will need to shut down reactors, clear ventilation systems, and engage defensive countermeasures to stem an unending tide of enemies.