Nothing that I could replicate now but there was one time in Star Wars Empire at War where I was ambushed by a huge rebel fleet consisting of mostly corvettes. I had maybe two dozen Star Destroyers guarding that planet at the time and my main forces would have taken too long moving back in order to prevent an invasion.
So I has a 3 hour long engagement in which I shepherded my valuable TIE craft carefully while keeping my Destroyers in a defensive wedge formation. 3 hours of them washing up against my fleet of capitals. Whenever a Star Destroyer would go down, another would jump in to replace it in the formation. It paid off keeping my TIE fighters and bombers alive because when the last wave of Rebels showed up there were a number of Mon Calamari cruisers, Y-wings and X-wings as well.
I held the line in the name of the Emperor!
...
I miss that AI mod, I should get to reinstalling it sometime. Made the game a lot less predictable.