Gentlemen,
I understand this is Beta and the game will crash every now and again. However there is an issue that goes back at least to Arma2. Its a really easy fix. My Arma2 server admin fixed this himself.
Apparently you guys used some whacky system to track vehicle ownership during a game. WHY? do you not set vehicle ownership to be tied to your GUID? My Arma2 admin hacked the code and made this possible solving a whole crap load of issues, not the least of which is losing your vehicle ownership upon Arma3 crashing.
I have lost many many many vehicle refunds at the end of KOTH matches because I was no longer recognized as the vehicles owner after a crash. I'm talking top dollar tanks and helicopters. Very frustraiting.
I often recover the vehicle myself, and sometimes manage to use it till it has repaid itself. However as a temporary fix you could incorporate a vehicle refund system which would solve my problem and encourage captured vehicles to not simply be blown up. If I recovered my vehicle and turned in for a full or at least partial refund. I would feel a lot better.
If you need my admins information to find out how he achieved this please contact me.