I would suggest reducing the number of construction materials it takes to build everything in battle, and siege mode. It could be really interesting and more fun if there is sometimes a base in game where the enemy army will charge into, costing a little but yet being possible to build and expanding the mod, because as it is now it's completely impossible to build anything without being sure to loose the round or being rushed into by enemies. For strat, of course, letting the numbers the same.
No ladders in siege and battle, okay, but think about building a siege tower in siege mod that could actually be not the stupidest idea you ever had to win the round, that could be exciting, or real nice.
For example
-Weapon rack: 3 construction materials instead of 5
-Small siege tower in battle: 20 instead of 55
-Large siege tower in battle: 25 instead of 85 (still takes a lot of time to build, and not much more useful than the small, but getting much more fun)