I reply here now, not in PM.
Some things I've noticed (partily):
SkyBase: no fans like in the strategy guides. As you can see no fans, no triggers, no anything.

VeloraEnd: the Titan got a weird stone-like skin which is this texture: NaliCast.Base.Wmcsb (it weirdly matches its eye!)

Also, the ending area where the healing fountains are, there's nali fruits
But on Bluff, they aren't there anymore lol
NaliBoat: I'm glad the Nali ghost was in there, though he isn't waiting you on the shore as I expected. He starts at his tombstone, then wanders around the map.

Harobed: as it was mentioned in the GW Press guide, there was once a crossbeam in the well with a SuperHp on it. Well it's still there... kinda. On Unreal diffuculty it's a flak ammo, but on easy, normal and hard it's a SuperHp. The crossbeam weirdly disappears when you start the map, I only noticed the crossbeam in the editor. Dunno why yet.

SpireVillage & TheSunSpire: both got a seemingly static skybox, though if you type slomo 3 or higher it moves, just noticed this why playing. Maybe it's a render thing. Either way both got weird lights in the sky...
X-Files theme intensifies


It's like more and more shows up every time lol a bit scary
Also, no additional brush here
To be continued...