Hi everyone,
First of all, thank's a lot to you vpmedia for this excellent modpack: working perfectly, with more planes than ever in campaigns, even with my old rig!
About your DGen campain problems: I tried the Murmansk one for Bf110 Luftwaffe: same problem than CaptSopwith reported here: my DGen log says "Ostfront not installed" - Ostfront beeing a payware campaign addon as Battle over Europe is, as you may know. Look here:
https://www.sas1946.com/main/index.php?topic=15387.12.
So I suppose there should at least be some files, or files names, missing so to play those campaigns. There should be a way to fix those problem, as some of the adon campaigns made by some moders, like the ones likend by BoloG here, are totally playable on those maps in modded il2.
About the "DGen\1940_Ardennes.DB" missing for the Generic ETO RAF campaigns, give me some time: I still have the Battle over Europe addon, still have the original dvd - I must have this file somewhere in one of my old Il2 installs saved on external hdd.
Cheers!