When the original Cassie Combat Assistant Artificial Intelligences failed in combat, the Marine Corps cyberneers came up with the interesting idea of using them to secure Marine bases. Their main failure was in the ability to strategize while lives were on the line. They literally could not prioritize the actions they needed to take while in combat. But it was a completely different story when the cyberneers placed another AI, like Jane who had no problem at all with the idea of dealing with lives on the line, in charge of a group of Cassies. Jane could pick out targets and plans to follow, and the Cassies in charge of the guns could service those targets without any hesitation at all. It was an ingenious hack to keep an expensive system in some form of deployment, which the bean counters in the Pentagon profoundly approved of.