Yeah S42 is going to be a heavy mix of FPS and space sim sadly. Erin Roberts once (though a long time ago back in 2014
) mentioned a 60/40 ratio in favor of the FPS part and said it could even be higher depending on how much time you spend in FPS running around your carrier mothership.
The time when Squadron 42 was just going to be a spiritual Wing Commander sequel with only a little first person gameplay, like walking to the briefing room or the bridge with some story and cutscenes strewn in, have long sailed. They are making Call of Squadron 42 Duty: An Advanced Warfare Future Recon Warfighter Soldier's Destiny and ya better believe it bitch
There will be space pew-pew and plenty FPS ground pew-pew on the actual ground, when boarding enemy ships and on space stations and in zero gravity. They didn't do all that mocap and hiring actors for nothing.