Yes, it is compatible with those mods.

Is it compatible with additional map mods? Sometimes the photobooth shows a blank (dark) screenshot. Also, it CTD often at mission debriefing, but may be managed through photoboth usage (view / take photo / etc). Would there be some odd interaction?

I've played with the "Event More Maps! " mod and haven't encountered these issues. What other map mods have you tried? I can check them out.

Regarding CTD, do you have the Psi Overhaul mod installed? I don't know if there's specifically an incompatibility, but when I got a crash (which was rare) there were some suspect error messages coming from that mod in the crash log.

Hey atamize, sorry my delayed reponse here. I got Maps by Vozati [WotC Edition], Doctor Mandarbs Map-Pack (WotC), [WOTC] EC Map Pack 1 and 2. Yes, I do have psi overhaul, and it does feel it causes several issues. I really wish to know how to read the latest crash log and find out which mod caused the crash. I can only find a thread#, but am unable to understand its use. Is there a link you can drop me I could learn that?

The logs can be found in C:\Users\[YOUR NAME]\Documents\My Games\XCOM2 War of the Chosen\XComGame\Logs. Each crash folder within will have a .log file. If there are references to NMD around the crash point I might be able to surmise something, otherwise you will have to get help from the authors of those mods.