This is a high class supplement not only for Infinity, but also for any game that need mercenaries from a multi world setting. This book is full of well detailed and fully fleshed out mercenary companies and NPCs usable as both groups to join and to use as adversaries. Included is a history of mercenary companies in the Infinity setting as well as all the rules you need to create and arm both mercenary PCs and NPCs, complete with tables allowing easy random generation of motivation and other character details. You will aslo find a list of the sorts of adventures to put newly minted mercenary PCs through. All in all if you plan on a game revolving around interstellar mercenary work, this is a great resource to have at your fingertips.