"9. Unable to repro"
Happens often for me...
Vickers takes time ( dismantling) to exit building but then sits outside the building dismantling the Vickers again ( usually in the line of fire) when you want it to retreat.
Effectively means to retreat a Vickers from a garrison you have to suffer 2 setup times before retreating, which usually results in a wipe.
I did a bit more digging and I was able to repro this. It occurs on all HMG teams. If the Team Exits on the side of the Building they are firing on (enemies on that side) they set up again.
Thanks