Alright sorry I know there is another topic for this but I want to make a quick reference link in my profile for anyone. Save 4.4 in a different location then your previous Combat Edition if you already play on .RU.
Visit
http://en.war2.ru/downloads/ Scroll down to version 4.4 "War2Combat 44". Download the STANDARD version.
When installing if you are having problems hosting/joining games I suggest trying out "random port" option. Might help. If not there is a guide for port forwarding at
http://en.war2.ru/hosting --
Add your CD key that GOG gave you on their website
VIDEO
How to access Warcraft 2 CD Key from GOG - YouTube You should select combat folder and then remove that "\Warcraft II BNE" from path on top of window. Stupid changer adds "\Warcraft II BNE" automatically, but it's not needed.
You should have path: "C:\War2Combat" or where you installed this version.
After you are finished adding the key you can load up with the No Cd loader
Finally you can connect to the GOG server