Disclaimer: The following is my personal opinion. It's not the official stance of Daidalos (if we even have such a thing WRT this problem
).
I am playing offline, too. Exclusively. I don't like the way online games are set up, their insane fighter fixation and the lack of historical accuracy. Which is why I stick to offline gaming.
Now when it comes to campaigns a lot of people praise DCG. I understand their fascination but I do not join the chorus of praise here. In fact neither DGen nor DCG are what I'd consider a good and accurate campaign within the confines of Il-2. One does too little for immersion and is too clumsy (DGen), the other does too much and and also does things I consider cardinal sins for a historical campaign (DCG). I greatly prefer solid handmade campaigns of short duration, with an adequate storyline and the right details to make them immersive.
But besides that issue (which is totally personal and not representative) it's a little bit tricky in a different way. I am wary of simply exchanging DGen with DCG since I do not know what exactly was the deal between Starshoy and Oleg when DGen was developed. It may be legally questionable to simply remove DGen from the equation ... this is a consideration we have to keep in mind. So what
could be done is adding little bits and pieces to make life easier for Paul Lowengrin (if he wishes). I don't know how much time he wishes to spend with Il-2 anymore (now that CoD is close to release, and I remember comments by Paul that he doesn't wish to add much more due to real life issues). I think it should still be up to each player to separately download and install DCG if he wishes ... that option is always available. But to give DCG a major rework, to go over all the campaigns and redo them where necessary is a task that is probably too time consuming (and not really a task for Daidalos, if I may say so) at this point.