Ok, heres a list.
GDI is mostly good as I no. Cept maybe retexturing the Mastodons House-color. You already got that covered though!
oop, maybe not, forget something, the pilots cant enter and promote vehicles.
Nod doesn't really need that Advanced Power Plant, as we have regulars that are upgradeable.
The Quad Turret Upgrade for Nod Turrets is badly flawed and doesn't even work, I recommend just taking it out and buffing the turrets or giving them firepower upgrades instead, perhaps giving firepower grades to all basic defenses that don't have em is a better idea IMO.
For the Scrin, I think you should take the Air Support Tower out, for better diversity for the three factions.
Their Archon Infantry doesn't have a model and its just ripping from the Awakened model.
Their Reaper Fighter(the one with the WTF description text) seems odd, maybe take it out or refine it?
For the mutants, I think you should take some of the buildable units out, like the Fanatics for starters, and maybe those jumpjets. (you should keep em build-able or usable for nod in the campaign however, so it works.)
The Redeemer doesn't garrison infantry, even if its description says so, same for the Scrin Hexapod.
I know its due to the fact that that its not possible to do the infantry garrison logic from KW, since TW lacks the codes from KW. You can probably just put those hard-points in as a unit upgrade or as a default secondary weapon for the super units.
That being said, should the super units cost only 3000? :/ Not counting the cost of building the Super Unit Structure. :P
Also a question, its it ok to have a source code so we can tweak for our own personal ends please? You don't have to do it publicly, just a personal request of mine. :/