Hi all. :]
I've tried searching for something similar but I did not find anyone mentioning this; which brings us here.

I am playing as the Romani if this matters.
Here is what I am trying to do. I want to attack a settlement (same turn spy opens gate preferably; or with siege equipment); and simply dimish the enemy forces quite drastically through killing half the stack with just missile units. I generally have a few slingers/leves/velites/hastati & principes who all carry pilla and other aimable materials. This only seems to work in battles where the enemy walls are not made of stone (for obvious reasons) - otherwise my tactical attempt does not work.

I simply want to kill as many as I can without taking ANY or very little losses and somehow retreat BUT not break the siege. In my trying attempts to do this I somewhat fail every time. I go with my plan, kill off 56% of the enemy troops, lose something like 100 men out of my 3500 stack then order all to retreat = crushing defeat & siege is broken, my army then proceeds to retreat in shame when it just utterly destroyed the enemy with barely any losses (+ I might also pick up a negative trait..). So I retry and do the same thing except now I let the timer run down after missile massacre = close defeat. My question is, is there any way to do the above but manage to get a neutral draw of some sort so that I still keep the siege and can attack next turn? I know it is possible to get a draw when you are defending, perhaps when attacking as well?

What I am trying to do might sound like a bit of an exploit but I also think harassing the enemy with my missile units in a siege battle can be pretty historical as well.

I hope there is a way to go through with this plan but I just have not found it yet.
Thanks in advance,
YD.