So here's a thing that's been nagging me ever since it happened:
I have a squadron of two Leman Russ Demolishers. My opponent (Tau) has a bunch of broadsides fire at them, and manages to score a weapon destroyed result on one of their turrets. Knowing what I did of new wound/hit allocation and vehicles, I decide to send both tanks up, putting the now turret-less LRD up front to soak fire for the one that's still fully operational.
Now, come my opponent's turn, he decides he can focus fire on the LRD in the back, seeing as it's being granted cover by the one in front (that's from the same squadron), scores a penetrating hit while I fail the cover save, causing an explosion result on the LRD in the back.
Is the focused fire on vehicles in a squadron being granted cover by other vehicles in the same squadron shenanigans?
EDIT: After leafing through the BRB, it's lookling like shenanigans, since units can't normally grant cover to parts of itself. However, I want to make sure here, since vehicle squadrons have always been kind of screwy.