Total Warfare is the single-source rulebook for people who play BattleTech. It is not intended to teach new players the game, but rather to serve as a reference work for people who know the game, while introducing more technologies and expansive rules than appear in the basic box set. The introductory game in the BattleTech line is the BattleTech Introductory Box Set. New players should pick up that product before diving into this one. Construction rules for the various units presented in Total Warfare can be found in BattleTech TechManual.