On a serious note, Nolfy couldn't include all paramilitary groups within his notes or it would've been more of a book than a set of notes. While he could definitely do that, I'm too lazy to write that much about a game I don't play anymore.
There's no singular strategy to beat the Battalion, anyway- too many variables (Different races, varieties of weaponry, different terrain, etc). He also assumes his family is smart enough to keep them reserved as loose allies, especially with their ties being traceable to Karamja.
I also don't think it's possible to defeat a group that wound up ignoring me mid-battle the last time I fought a war against them. Sorry. :/