Controversial view, but it's from humble equipment such as dedicate trench / tank ditch digging, or mine laying machinery, and others, that you see how much an army believes it will at some point fight a "real", nasty state-on-state war.
Wargamed these recently, more efficient that using two vehicles and T-push method, but only one use, whereas AEVs and plant have many other uses for a small Army.