[Saxon]

I have a number of seiges ahead of me and am looking at putting together two squads of seige specialists. When I did this, I gave them the horn that knocks down walls and the hammer/axe of knocking down walls. (Obviously, I forget the exact names) It looked like the effects do not stack. Am I doing something wrong or is this normal?

Also, any suggestions for my seige squads? I do not have construction 9 yet and am unlikely to do so. I am also running Caleum, so fliers are included.

Cheers!