Thanks again Eumerin!
Guess I'm gonna house rule that one. Seems strange if one can snipe the leader vehicle or the one that has the extra odd heavy weapon team. I'll rather distribute them evenly and then roll to see which one has been blown to smithereens. If only to reduce clutter on the table (tokens or lists of who is who)
You don't need to house rule this, just read your rule book.
It tells you who allocates hits & how.
It doesn't matter what the squad type is - infantry, tanks, transport vehicles, guns.... its all the same process.
Hits are allocated amongst eligible targets, there's a chance to reassign hits, then saves/fire power checks are rolled.
With transports you'll almost always have passengers split between several vehicles.
As said, you'll need to record wich bases are in wich vehicles.
When one of those transports is destroyed, the book tells you how to make saves for them etc.