Interstellar Operations: Alternate Eras
Primitive Units. QuadVees. Superheavy 'Mechs. Weapons of Mass Destruction. Robotic and Drone Systems. Land-Air BattleMechs.
As you delve into BattleTech lore¸ additional weapons¸ units and rules become available to you and your forces as you fight in the Dark Age¸ Jihad¸ or even the depths of the Star League Eras¸ and all the way back into the Age of War before the birth of the BattleMech.
Alternate Eras introduces a huge swath of rules for playing across the thousand years of BattleTech history¸ including weapons and equipment mostly unique to a given era.
Note:
The original publication of Interstellar Operations
had rules for large scale BattleTech play (Strategic BattleForce¸ Abstract Combat System¸ and Inner Sphere at War) which can now be found in the
Interstellar Operations: BattleForce.