I suspect the question being asked is whether or not Falcon has obtained, or even requires, a license from the developer of the actual aircraft in question, that is being simulated.
To my knowledge no such license has been obtained. If the design and conceptual arrangement of the aircraft and the cockpit is something that copyright applies to (and I am not sure whether or not that is the case) then such a license is indeed required, even if the specific cockpit and aircraft models in BMS were developed by third parties.
Exactly, if I try to the model the cockpit, systems and avionics of say an F-15 using manuals that are publicly available would I run into issues lisencewise and also would the implementation of -1s and -34s be problematic as far as the military is concerned?