In return, when the Muslims capture Jerusalem the Christian's morale should drop at least as much as when the Christians capture a piece of the true cross.
I mean a single city, not the whole kingdom surrounding it. Simply because it meant so much more to the Syrian Franks than it did to the Muslims there. Sadly morale can hardly be implemented at the moment.
I don't know that the Francisca would be common, it was specifically designed as a weapon, it's not like they just raided the tool shed for a handful of axes to lob, just because it was the Frankish throwing weapon of choice doesn't mean low end infantry would get their mitts on it.
I'm about to rework the troops file for the beta - give the low-end and shock infantry a few missile weapons, to keep them from being totally at the mercy of missile cav.Besides stones, what would be historically correct?