Hi Bane. I just downloaded your Crusader mod and I need to tell you there's a problem.
There is no Unit options dialogue box in the bottom lefthand corner. You can't tell a unit what to do unless you know all the Hotkeys!
In the Civilopedia, under Units, there is an endless list of 'Building Created.'
Don't know what the problem is. Something in the LUA, maybe?
I'm writing this here rather than in the usual Comments section because I don't want to put other people off. The problem could be at my end, but I don't think so. I reloaded, re-downloaded, and double-checked I had nothing else running that might interfere. I tested another mod (as a control) and it worked fine.
Other than that, the mod looks really interesting (which is why I downloaded it).