I've switched out the militia training with "Implement (Testudo-class Guardian Tank): Planning". I picked this because all the Fel/Hel-series vehicles are things that require AdMech actions to build, based on the fact that Fabricator General Britton had to build them back in the day (though if
@Durin tells us that's changed I could change to the Hellord for anti-Ork stuff) and because it's something that our enemies will likely have never dealt with before, so could provide us some interesting options. I imagine they'd be especially useful when approaching any fortified position, like an Ork Rok that's been landed.