BattleTech Manual: The Rules of Warfare (1987)

From the back cover:

"As dawn broke over the battlefield...

The helicopters roared over the hill, skimming the tops of friendly 'Mech antennae. Aerospace Fighters carrying heavy bomb loads hunted for the enemy airbase. At 1500 hours, the main 'Mech force moved out. The motorized infantry had pulled out about three hours earlier, and the tanks, both tracked and hover had left an hour ago. At 2000 hours, the hydrofoil assault force skirted the enemy's rear echelon and called for support from the artillery fire base. The battle was joined.

Now all the rules for every type of tactical combat in the BattleTech universe are in one place. The BattleTech Manual contains reorganizated combat rules from BattleTech, CityTech, AeroTech, and MechWarrior.

Sections contain new rules for using:
Helicopters
Naval Vessels
Conventional Aircraft
Artillery
Dropships on the battlefield
Anti-'Mech Infantry
And much more

In addition, this book presents complete generation rules for all vehicles, from BattleMechs to submarines.

The MechWarrior's most complete and accurate sourcebook.