I've head the term Alpha Strike used frequently, usually to refer to a single massive attack or a single round of heavy attacks, and I'm wondering where the term originated in board gaming and its history in gaming.
I'm looking for its origin or history in actual gaming rule books or gaming reference material, not just shared verbiage among players, nor am I looking for information outside of gaming.
The earliest reference that I'm personally aware of is in the old FASA BattleTech rules, but are there earlier references than this?