MRAPs

[Imp]

Concerning #2 I don't believe (and as stated on the first post I could be wrong here.)

Dont take as gospel but vehicle crews in a campaign work like this.
They gain any experience from the battle then if upgrade/switch vehicles the following happens.
To same type of vehicle as in tank to tank minor exp loss as its new equipment.
To a difrent type of vehicle bigger exp loss
If the vehicle is destroyed the game still checks think fairly random if enough crew survived & there is a chance they do & transfer to the new vehicle.
Same applies to all units change to a diffrent unit type they take a small experince loss. The bigger the diffrence in unit type the bigger the loss, for instance switching a squad to a vehicle or SAM unit.
Hope that helps