Many components of Tactics and the Improved Battles Mod reported problems while installing, due to the lack of the BARBARIAN line in the file KIT.IDS.
I asked Vlad, they altered the file as the original version seems to be buggy.
He pointed me to this thread
If I understand what Dyara says, the BARBARIAN line was removed as it was useless.
Could it be that WeiDU components were indeed using that, but with no real effect?
My final aim is to obtain compatibility with all of these mods, if the above if true maybe I could just let the installer complain and play as if nothing had happened...
Thx for any comments

EDIT: I understand it's not strictly WeiDU-related, but I think it could be interesting nonetheless..