Reach Stability with eGPUs

Just wondering if anyone in the flights thus far has used an eGPU and know if Reach has any known issues with that platform?
Under normal circumstances it makes absolutely no difference in most games.
However, there are a few notable exceptions in my current steam library - wouldn’t want to be installing the game if it’ll be borked on release is all.

Speaking of the release, anyone know any indication as to what time (preferably GMT) MCC will be available for download from Steam?

Reach will be available to download and play on the 3rd at 10AM PST, or 6PM GMT.