When playing a mission in multiplayer (dedicated & non-dedicated) where players are inside the cargo of any ground vehicle or boat, they can always switch to the seats of the AI-crew, just taking over the vehicle and ruining the whole concept of a mission!

This is due to the fact, that the "Locked (player)" setting is not working in multiplayer.
The "Locked" (for everyone) setting does, but then again neither player nor AI can get inside or -which is worse- out of the vehicle.

When using a completely locked vehicle, the "transport unload"-waypoint, disembark order, eject script command and so on will only work for players, NOT for the AI! They will be trapped inside the vehicle forever, so compeltely locking a vehicle is no solution either.

A workaround with lockTurret is also not possible, since this command is broken.
http://feedback.arma3.com/view.php?id=16766

It would be great to have the "Locked (player)"-setting work in MP just like it does in SP.