So I installed the game as well as the Redux mod.

At first I could not connect to the multiplayer (failed to initialize), but then after running the Galaxy launcher and logging in, I could connect and play multiplayer. However, the Galaxy launcher caused the Redux mod to be disabled after the update.

So I re-copied over the Redux files, launched the game directly from the AVP_Classic executable, and I could connect to multiplayer with the mod still working. Not sure if this will be the case for everyone, but this worked for me.

Anyways, I've had no problems creating or joining games. It's an absolutely amazing blast from the past. Everything is smooth as can be for me. System specs (if those matter for feedback) are as follows:

OS: Windows 10 Technical Preview x64
CPU: i5 2500k
GPU GTX 680 2GB (Drivers 344.11)
RAM: 2x4GB DDR3
SSD: 60GB Crucial M4 (for OS)
HDD: 500GB WD Caviar Black (for games, what AvP is running off of)

Also, not really a major thing, but a bit of a mental tick none-the-less; our names get cut off in multiplayer. Like for me, it cuts of the 'e' so it reads as 'ThumbtackJak'. Again, not a big deal, but drives me a little bonkers.

EDIT: Also, a way to resize the HUD would be nice. It's a bit small at 1920x1080.