Yo! hope I aint interrupting or violating anything

Could it be possible to impliment uanime9's Extended Japan map for Sekigahara? since it'd allow you all to bring out more clans and have a more diverse, longer lasting and grander campaign I imagine, along with making it not seem so short perhaps?

Ik MoSS implemented this so is it possible to ask help from other modders or is it frowned upon here? Since more provinces also mean having chosen chokepoints to hold off the aggressiveness of the Ai in higher difficulties