Kaatar, I was going insane trying to figure out the problem, when I reread your post. In seems not only does the UrbanMilitia unit still have PEASANT, every other unit that uses that bif hasnt been replaced with CUSTOM1. Oops.

lancelot, the "Clan" thing is from MTW's engine. MTW is built off of the Shogun engine, and thus has many things remain that still smack of Shogun (Valour is called Honour in the unit_prod files, heroes are called samurais, etc). Thus, what you read as Clan, we know as Factions. I'll look into the error. I havent seen anything wrong with the trees in the battlefield lately, though.