Well, I managed to fix the audio problem I was having. Audio was set to 'source' for all of the other games I play, but setting CEA to emulate a 5.1 surround setting has done wonders. Weird that I have to do this for remastered audio, but whatever. It's only a button push away and with minor exceptions it's miles better than it was (there's still Cortana dialog that's low, but I remember it being barely audible in the original as well). Not a big fan of the new plasma rifle sound, though. Sounds like a cheap toy. But dat sniper rifle, hnnnnnnnnnnng.
Only found two of the terminals so far (one per level, right?), and holy shit are they spectacular. THIS is how you do terminals and get me interested in the lore; that cryptic text shit from H3 can just go away forever.