How does a MechWarrior interface with a BattleMech? How does a ProtoMech really work? When was the Gauss rifle or the Particle Projector Cannon developed? Or how can I just make my own; cool and unique BattleMech design? If you've ever been plagued by these questions; then get on your coveralls and make sure you've got your astech certification; because you're about to dive into BattleTech construction!A companion volume to Total Warfare; BattleTech: TechManual combines all the construction rules for the various units presented in that core rules set. Streamlined and updated; it contains all the core weaponry and equipment from previous rules set; as well as the newest; bleeding edge technologies. More than just a rulebook; however; the TechManual presents numerous sourcebook-style treatises; providing the in-universe context for these units and the technologies of their development. A must have resource for any BattleTech afficionado!