I hate to be the one to burst your bubble, but the whole incident can be explained by an avalanche. The cut their way out of their tent, (which was pitched on a mountainside), as the snow from the avalanche had completely covered their tent. Let's break down what happened after.
They left their tent barefoot - This is most probably due to needing a quick getaway. Snowshoes and hiking boots take a while to put on, and they clearly wouldn't have had the time. A contributing factor may have been hypoxia, as they may well have begun to suffocate in the tent, leading to confusion and disorientation. These hypoxic symptoms probably stopped them from returning to the tent after they thought the area was safe
Two of the members were found undressed and others were found inadequately dressed - This is known as paradoxical undressing, which is an associated symptom of hypothermia that causes the victim to undress themselves in a state of confusion. Items of clothes from others that were partially dressed were found on people that had no doubt survived longer and took it from the dead. The following is taken from wikipedia
One explanation for the effect, [of paradoxical undressing], is a cold-induced malfunction of the hypothalamus, the part of the brain that regulates body temperature. Another explanation is that the muscles contracting peripheral blood vessels become exhausted (known as a loss of vasomotor tone) and relax, leading to a sudden surge of blood (and heat) to the extremities, fooling the person into feeling overheated.
Internal injuries associated with that of a car crash - Avalanches can move in excess of 200mph, carrying both boulders and large blocks of ice. If they hit a person, said person will be a post-person. Internal injuries don't always match up with visible injuries, and 50's Soviet forensic techniques, like the vast majority of the world, were rudimentary at best.
The missing tongue mystery - This is possibly the easiest to explain. The answer most likely lies in a hungry animal that saw a fresh body, sniffed the mouth, saw a fleshy pink lump, tore it off and wandered away.
Running away from the camp - Again, they were probably trying to get away from the danger zone. We need to remember that the on the night in question, the temperature was far below -25C, with a severe snow storm. Mix darkness in with this, being a mile away from the tent or 10 metres away wouldn't have made a difference when you can't see your hand in front of your face. They were lost, scared, cold, and injured. It's a pretty horrific way to go. (On a side note, I recommend watching the film The Way Back, it has a really sad scene where one guy gets lost from the camp and freezes to death, and they find him in the morning about 15 metres away from the camp).
The Soviet Generals - I've never heard of this before. If it's true, they were probably either trying to figure it out themselves, or telling people to shut up.
I hope you found this interesting, and if you have any questions, feel free to ask.
