Lol. Yeah it is so perfectly normal and "non-fake" for NASA, China, and Russia to all use scuba equipment for "legit" space walk mission videos.
So you don't know how training for space walks is done, that's not unreasonable that you would misunderstand that given your lack of comprehension generally.
Since you raised the subject of GPS, You are probably unaware that the satellites actually transmit their co-ordinates in real time, you can build your own receiver and write your own decoding software if you wish, the satellites are in orbit at about 20,000 km, but don't believe me, you owe it to yourself to discover the truth.
I don't understand why you think WGS84 ellipsoid is a flat earth? It's just a simple XYZ cartesian co-ordinate system, and the surface of the earth is mapped in that co-ordinate system as an ellipsoid, so you can get correct altitude fixes.
I have use LEO systems extensively, and they aren't "blimps" that's just showing your ignorance. There are also plenty of amateur radio satellites in orbit, built and operated by amateur radio groups around the world. I used AMSAT OSCAR 7 many years ago.
Here is a list of current AMSAT satellites
http://www.amsat.org/status/"LEO systems are simply solar-powered blimps that float in a fixed position indefinably" Thats just pure BS. If you think otherwise, I challenge you to prove that ANY of the amateur satellites are fake.
Sanitarium happy hour here we come.... !!