The new editor reminds me alot of the CryEngine editor. Light and entities appear to be in realtime, and the way you can "paint" trees and make displacements that simple looks alot like the CryEngine map editor.
I was hoping for VALVe to create an editor like this for years, but I never thought...
Tbh, the Medic theme just seems to be played in mono and not in stereo, and I haven't heard anything from the Scout that dosen't exist in the gamefiles.(In fact, I was able to find every line but one the gamefiles and the missing one was from "Meet the Sandvich")
Gearbox hasn't changed the filenames for the new soundtracks in the Opposing Force files. I know it sounds stupid, but that's the reason why you don't hear Opposion Force music in the Steam version, the base GoldSource and HL content have priority over the Opposing Force content.
It basically means: If you fail you will get your punishment, wich is getting into some weird new body and getting send somewhere else (probably even the Combine Overworld).