Does anyone know how to mod siege towers to reduce their rate of fire? Right now there's no incentive to upgrade the walls beyond stone because the next two wall sizes give the attackers towers with ballistae. This by itself wouldn't be a problem, but these towers-of-death fire 2-3 ballistae shots per second, and basically mean that you cannot have any units defending the walls, because they'll get annihilated before the assault towers get in place. To top it off, these towers don't seem to have an arc of fire, so if you're in range, you're under fire.

This didn't use to be a problem because the AI never turned tower fire on before BI 1.6, and I chose not to use it myself to avoid giving me a huge advantage when assaulting towns. This gatling-ballistae is very unpleasant, unrealistic, and frustrating. Aren't bigger walls supposed to be an asset to the *defender* as opposed to the attacker?