How to add a new faction and modify existing ones

[-=Hiruzen=-]

Hi Thanks for the Tutorial, Im having abit of a problem with bob 2 no 2. Whenever I click start and choose the mod pack I created from bob 1 it would say done then red and an error: Failed to save startpos.esf in c:/program files (x86)/steam/steamapps/common/total war shogun 2/modding/working_data/campaigns/jap_shogun/!

Any help would be appreciated thanks

[uanime5]

I added a guide for adding buildings.

[FacepalmOfNapalm]

Is there a way for faction effects to be enabled in the custom battle gamemode? For example, if my faction's bonus is to have +3 charge for units (i.e. a clone of Choshu's ability) it will work in campaign, but it won't apply to units in custom battle. I suppose one way to do this is similar to how it was done in vanilla Shogun 2, by creating clones of the normal units with their bonuses applied directly to the stats) but doing it for each unit a faction could possibly use in custom battle would be tedious and susceptible to mistakes. Thanks!