Oh, man, I wish someone had told that Fire Power had a 1995 3DO sequel, 'Return Fire', that was released for the PlayStation in 1996. I should have played that.
After playing the unofficial Pico-8 Zeewolf port Zedwolf, I've been thinking about base attack games, and Fire Power was the earliest game of this type I've played. I booted it up on my MiSTer, and methodically started destroying the enemy base. I think the objective is to destroy the large buildings, and one of them has a flag to capture or something. I didn't succeed.
I played a single failed round, but with a decent score.