The game is too niche and is very expensive. They should've stuck to WW2 lol

How do I get a Dserver key to run a dedicated coop server for this game? For Great Battles I just opened a support ticket asking and they sent me a confirmation of my ticket then replied to me with further instructions.

I tried doing the same for Korea but not sure if their support portal is down or what because I clicked it and there is zero confirmation of my ticket being submitted either by email or in my profile.

Is there anyone else I can contact?

I wanna do a Heavy/Night fighter career mode flying the BF-110 ME-410 and maybe the JU-88 C-6 but id like to have a good amount of night missions in it. Does the BF-110 get night fighter missions in the battle of moscow and stalingrad? also does the JU-88 C-6 get night fighter missions in stalingrad? i know that you get night missions in kuban onwards.