From the Introduction
This game is based on SpyLite, although MicroModern will work just as well.
Default SpyLite is based on the assumption that even first level characters are awesome. Characters should be knife-fighting Nazi spies on the top of a speeding train, sniping foes while hanging upside down from a helicopter in the dead of night during the worst storm of the season...this is SpyLite's default power level...and it's not necessarily very gritty. It's great for a Resident Evil-type game, not so much for Dawn of the Dead.