Maybe it is a double but I did not find this question asked directly in the forum ( if it is the case , i apologize
As I can imagine, there is nothing impossible in a ground attack by a trained unit by surprise , taking advantage over the group, forcing them out the tent, making them march at night and leaving them in the night .
IF we accept that some of the evidence are false : missing notebooks( why ), cutting tent from the inside, the time schedule of the tragedy ( no coherent is possible as i can figure out ) .
hiding tracks ? easy
This, of course, does not give any reason for all this
A mistake hidden afterwards
People at the wrong place
Starting as an accident
hidden mission undercover by one of the group
It sounds " 0ccam's razor " for me because it does not involve big military implication, jets , flares, atomic bomb, yeti, secret weapon .
Excuse my english here ; it is my limit