It’s been a long time since we stopped selling full access to the Battle of Stalingrad.
However, time has passed without the new mode being implemented yet.
For this reason, even if we proceed with the current situation, we are still unable to release squads in some progressives.
If you still need time to update, can’t you just sell progressive release rights?
Yeah, I think it would be fair. 
Stalingrad is for me, personally, best campaign. It would be nice if f2p players would able to enjoy it in its fullest potential as well.
DF needs to unlock all the content there for everyone.
the ppl who bought the pass still keep their great compensation like 3+3 additional slots, this way everyone will be happy and people have more reasons to play.
For me, F2P player, Stalingrad is the least favorite campaign of mine now.
Even pacific no longer has hidden progress stuff, so that one I enjoy.
Removing these hidden unlocks,
either by actually allowing the F2P to unlock them, which would be ideal,
or at least allowing them to skip those pointless levels can help.
Yeah, they should just unlock them for all. For me, paying player, it’s my favourite campaign of all. I would happy if everyone could enjoy it to its fullest potential.