Alright... anywho, pretty much every flagship game I've been in the cap is almost always used to expand. That's offensive. Using your capital offensively after the lines are drawn would be stupid and I hope I can take advantage of your stupidity and kill it if I ever play you.
Played a game with a friend of mine, and he was playing UNSC. It was a cap game, and he had one fleet that he used for EVERYTHING. His Cap ship was always with it. Didn't understand why I kept yelling at him about it.