If the rumored Bitcoin Freemasons do exist who’s to say they couldn’t pull this off with the MH370? A Singapore Airlines 68 flight was close enough at the time of its disappearance to hide in its radar shadow and the Malaysian pilots could land anywhere between Singapore and Barcelona. Now the secret Society has a jet in their disposal which could be used to transport important people, laundered cash, even weapons discretely all around the globe.
The moment they would have gone out of the radar shadow they would have been picked again.
Also those were airliners not fighters to be capable of such things.
I'm pretty sure your story was inspired from this but:
http://keithledgerwood.com/post/79838944823/did-malaysian-airlines-370-disappear-using-sia68-sq68
Let's get real , sometimes the truth is so boring that we need to let our imagination loose.