Right now as I posted this question, the difference of thrust of the Mage I and the Apex is huge, 2800 kN in difference. Would there be an engine in between would remove the need to use an Apex engine when you only need half the thrust of it with a size of between the 2 engines?
I'm guessing yes, considering all they're other games have 5 or more engines, and they're still in the pre-beta version of development. Don't know when well see them tho