to get the right place to add resources play the campaign and bring up the romeshell and move your cursor over the lace you want it they type in romeshell 'show_cursor stat' note down the number that comes up
then go into descr_strat and scroll down to an iron resource at the beginning and coppy and paste a new line but change the co-ordinates
then go into descr_regions, find the region you are putting the resource into and type iron on the end.... remember the commer

GMM