First of all, as it's noted in http://forums.eagle.ru/showthread.php?p=587520#post587520 you'll have an additional campaign. I may also state that cockpit, wingmen, ATC radiospeech and Betty are in English. Trainings have English voiceover too.
В твоей миссии такое расположение синих вертолетов на ФАРПе как-то связано с наличием клиентских вертолетов красной стороны. Будем разбираться, спасибо.
When you replay your track - does your helicopter disappear? Does it disappear the same time it disappeared when recorded? How much free memory is left right before it disappears? What will you see if you set graphics settings to "Low" preset?
Ok, I saw your track and in my view version you crashed into the ground at 2449 second (hit RCtrl+Pause to see track time in seconds while viewing). No disappearing before this event happened. What's you version of viewing? Please tell the exact time of disappearing.
Edited: this may happen if you are out of system memory.