Battletech 

Force Manual: Davion details the Armed Forces of the Federated Suns, examining the combat commands of the Federated Suns and their histories, tactics, unit crests, paint schemes, and notable personnel. This sourcebook includes special rules for unique character abilities, faction-specific rules, force building options, and a mini-Technical Readout–everything you need to field your favorite Federated Suns unit on the tabletop, or create your own.