Are you sure? In both games, the AI doesn't use Chrono Legionnaires. I wonder why.
Allied AI used Chrono Legionnaires in vanilla YR in skirmish, especially on higher difficulty. They could send them straight away across the whole map to your base and to their death, or sometimes put them inside Allied Battle Fortresses/IFVs.
It was not particularly useful, but AI did use them.
- need my speed likes this