There is a big difference between "Unexplained" and "I was shot down purposely".

Have others had problems? Have the problems been limited to certain frequencies, areas of the field, times of day? How long have you been flying RC or flying that plane, that radio?

I lost a plane I had been flying for over 16 months. flew totally weird one Saturday, checked it endlessly and found nothing, flew the next Thursday 4 great flights no problem. The very next Weekend, 15 seconds into the flight it went crazy (I just kept it from going into the pit area), the crash destroyed it totally. I sent the entire radio into Airtronics. They reconnected Four (4) broken wires on the right hand control gimble. How had I flown perfectly on Thursday, done a preflight control check, with 4 wires broken off? If you dig deep enough and don't start by looking for validation of your "shot down" theory you will probably fined the reason you crashed. Of course it is also possible everyone just hates you.