A way to save single player campaign replays?

Im new to Rome Total War and Ive been playing the first imperial campaign with the julli family. Im at the point where theres a battle at almost every turn I have , I was wondering if theres a way I can save Battle replays for the Campaign mode? Such as a mod that allows you to do this, I think you can only save replays in custom battles. In a lot of my battles I hardley get the chance to see my soldiers actually fighting the enemy as Im commanding them so much and watching the battlefield until I get to the end and I chase the enemy away. So is there any mod out there that allows you to view your campaign battle replays?