Hiya M8,
No campaigns yet.
I have looked at the Blenny as a mission pack/campaign.
The problem I find, with the 'proof of concept' missions I've done is that it's either a succession of 'novel ways to commit suicide' -or rather boring - if there was a way to do crew interaction by importing speech packs this might be a bit less of a problem ( alot of scripting tho!)- this appears to be a non starter tho (in fact I think IL2 is the only sim where this is possible)
Ideas I considered were an OTU mission pack/campaign and a recreation of the first attacks of the war (Heligoland Bight)- being somewhat 'creative' with the map
The OTU idea is on back burner, I know several people have asked for something similsr. I do have some sadistic ideas for that

to try and drive the storyline along.
IF I get round to this, it will be some time

,
I have another campaign is 'in the works' and that should keep me occupied for the next couple of months at least( it is also rather dependant on release of TF4.0)