Quote Originally Posted by Quintus.J.Cicero View Post
I tried that before, and it worked! The enemy units defending the city were all green, my forces rushed in.... and turned green too. It didn't stop me from taking the city but does my troops have to wait a while for the cow effects to be gone, or is it something else I've done wrong.
Yup, as long as the cow is there and the green fumes are flowing, anybody and everybody downwind will be grossed out. I don't know the exact duration of the effect after leaving the AoE, but IIRC it's quite long, around 5 minutes or so.
That's PBI's point though, I think : the cows are usefull on an open battlefield, because you can drop them in the path of an advancing enemy. Keyword being advancing .

In a siege situation, I wouldn't say the cows are particularly worth it, for the reason you mentionned. Besides, it's much more fun/effective to concentrate fire to try and crumble a wall beneath its defenders, or just park them down a street and fire at the town square. One boulder is bound to be a lucky hit amidst the hail falling over every building in a 120° arc . Anyway, nobody ever said siege weapons were useless in sieges

For what it's worth, I have the same qualms about hornet throwers in the Americas campaign, I can't seem to use them in a way that would ensure the hornet would only affect the bad Spanish guys :/