Hello, I have several issues that are knarling me in the back, now these game issues that I have a problem with are not GAME CHANGING it's just that I wish to see them changed

Physics- now we all saw those catapaults hit that roman legion, and it looked as if they had explosive shells in the rock itself XD, now would it be hard to mod that down a bit when the game comes out, assuming if we had the same amount of modding tools avaible as we did in shogun two total war.

Unit cards- they kinda look funny to me, how long would it take to mod those to just change the imagery in the card, not the card itself.