In the thin games, the fighter is the simplest face at the table. He hits things. He hits them a little better next year. Everyone else gets a novel. He gets a plus.
ACKS does not pity him. It promotes him.
At the door, he is still the man with the best to-hit and the nerve to stand there. Cleave turns a winning round into a pile. The damage bonus climbs without a subclass binder. That is the dungeon job, and it is honest work. Then the gold arrives, and the class reveals its real shape. Mercenaries. A stronghold. A garrison. Borders. The fighter does not need a new book to become a war. The war was always the high-level version of standing in the doorway.
This is the piece 5E keeps missing when it tries to “fix” the martial. It adds maneuvers and resource poker so the fighter can feel as busy as the mage. ACKS makes him matter by giving him men. A captain who can hold a line is useful. A lord who can pay a line through winter is a fact on the map.
I got tired of fighters who peaked as action-economy puzzles. I missed the older, colder fantasy: the veteran who survives the hole and comes home with enough coin to make other people fight for him.
You can keep him as the party’s hammer forever. That works.
Just do not be surprised when the game starts asking how many hammers he can afford.