Well when I took over Rohan they had been content to sit around, spread all over the kingdom. I gathered their troops in an army that would be devastating in the field, and had a strategy in place to cripple Isengard economically (since cav armies are somewhat weak when assaulting cities, especially such with ballista towers). You going out and attacking the two armies in the field really gave Rohan an edge IMO.

However, the economy of this mod is such that due to corruption and high upkeep no one is going around with 20k nor do we have a lot of full stacks to throw around. TATW is slow to start and slower to develop (and the distances are huge). That, and the lack of forts, make it vital for player to plan and take measured steps and actions.

Unless they're Mordor, in which case they just kill everyone anyway No but seriously, the AI has huge garrison and money scritps in SP - there Isengard spews out hordes of troops. In MP it's different.

If there ever is a second TATW hotseat I'll get Gondor for sure.