The reproduce method is may seem a bit confusing, however it always can cause this bug on my PC.
It is necessary that the subordinate player vehicle was is damaged and after this the AI commander of player, will order to leave damaged APC (player automatically wil be ejected) and then the AI-commander will order sit down in his vehicle. If you sit in vehicle of your AI-commander, after this moment the problem will take place
repro:
**a)** place in the map APC - AMV-7 Marshal (must be AI-unit)
**b)** place in the map your APC - AMV-7 Marshal or Rhino (player commander)
**c)** make your APC subordinate to the AI vehicle - AMV-7 Marshal
**d)** place in the map enemy vehicles (that is equivalent to the your faction forces) For example must be 2 Blufor APC vs 2 OPFOR APC or 3 Blufor APC vs 3 Opfor APC, etc
**e)** give to every squad the "SEEK AND DESTROY" waypoints (directed towards each other)
**f)** after run game and fight you need to wait moment, until the your APC was damaged.
In this case, your commander (AI-vehicle) will command you to leave your vehicle and get into his vehicle.
When you sit in his cargo hold, you will see a infinite loop of commands - Get In /Get Out / Get In /Get Out