Interesting ideas... although I have Academy and Guild late units planned already, there is a space for more.
As for Provost and supposed Psi 'fake difficulty' (or specifically, 'difficulty'), I had an Academy Hideout Defense yesterday. I had circa 16 unscreened soldiers (but half of them about 70-80% trained after 10 months of Church Raids, Megascorpion Hunts and Warehouse Wars), no armor to speak of (Scale Mail, Durathread or nothing, a single Grav, a singe Wench), weapons being couple of Ret Plasmas, 3 Hydra Lasers, 1 RPG, the rest armed with flamethrowers, HE-packs, Frag Grenades, one lol-SMG with Acid ammo and Rapiers (which maybe was a mistake... should've risked using Axes, maybe). Davy Jones diff (the second-hardest).
End result? 15 turns total (of which 10 were hunting down a few stragglers in hangars + one esper in severs), No casaulties (several heavy wounded tho), bagged Esper and Provost. Sure I was lucky, the Provost had only a Plasma Pistol and didn't kill anyone despite reaction-firing during being gang-banged by 3 gals with 2 rapiers, 1 acid SMG and 1 Ret plasma, also my plan to assault elevator & hangars through the vents worked miracolously well. I think there was maybe 10 Psi attempts total, of which 2 succeeded in panicking my gals. No MC. And no, no save/loads. Call me a magician?