in my time playng mtw2, ive found many maaaany enemy armies made up of ballistas, catapults etc. and it makes them too easy to be taken down and its really frustrating to being constantly attacked by such armies and not by real, strong armies. Because of that, ive changed the 'export_descr_buildings' and i delete all ballista buildings (i dont care for i dont use siege weapons) but once i create a new campaign the buildings are still (buildable?). Im looking for someone who can give advice in such matter (unless its hardcoded), so i can enter the files and modify them to prevent factions from building balista makers.