2> the sound of the splash is instant, no time delay as one would expect from an object 300-500 meters distant. 3> the splash sound is too 'soft', not the 'slap' sound of a solid object hitting water.
You can hear the water splash? I tried to for several times now but I hear nothing because the jet engine sound is just too loud...
Concerning the things actually hitting the water - well I can't really say too much about this because if you do some zoomed in stop-motion views you'll see that very much gets lost in compression artifacts...
Currently there is said to be a pilot saying that they really were there shooting something down. I'll see if I can get some trustable info on this...