Jack of Harts

The original Cassie Combat Assistant Artificial Intelligence completely failed in combat. She fell into a regressive loop of counteracting priorities she couldn’t break while lives were on the line. But she could think with the best of them when in training situations. So the cyberneers made her a Marine Corps trainer and the rest is history. She excelled in that venue in ways even other AI trainers often failed to master. They were built to simulate combat. She was built to be combat. So she never took it easy on her trainees. She put them through Hell with every built-for-combat subroutine she had. Every Marine to see any form of service in the last two-plus centuries has trained with her, and it is impossible to calculate how many have lived because of that training.