Having those in this mod, while historically accurate, would not serve a real purpose, and would be more of a liability to the player. What those large crosses did was inspire troops around them to fight harder so the enemy could not capture/deface and to remind them that they were on a mission from God Himself. Men of the time would die before letting one of the hated "infidel" get near that incredibly oversized cross.
Accurate? To an extent.
Useful in the mod? Not likely.