Sorry but no. At least one plane for each mission type/roll and tier should be avilable in the base game. Not as addon/DLC content.
As part of the base game - and always, as bare minimum
- At least one plane…
- for every company
- for all tiers
I shouldn’t have to buy a base game AND additional content just to enjoy the base game in it’s entirety.
that would be like buying Rome:Total War and then telling players they have to buy “SPQR” just to play the main storyline campaign included in the base game.