Forced Unloading Movement

[cjsiam]

So I have a hex with 3 INF in it.....
I'm driving my Truck (loaded with an AT gun lets say) and as I enter the hex the enemy Opportunity fires at my moving truck
and gets an MC---which I promptly fail as disrupted.....

So---I would have 4 combat units(3 good order INF THAT JUST BECAME DISRUPTED!!! and 1 disrupted ATGun from the UNLOADING) and a disrupted truck in the hex---not good

So---I have to move a unit out.....
a) the disrupted AT Gun?  -- ok...
b) a disrupted Inf---can I really force an INF to move out of the square..?? ...

As soon as the unit unloads disrupted, the entire stack disrupts......(4 combat units).....and someone has to move---picked by the enemy...

Is that how this plays out?