Defense has no way to resupply ground vehicles on the “invasion” type maps like the invasion of Normandy. I’ve driven all the way back to inspect the spawn and found nothing. On the 3 point capture maps i’ve seen the points so I know what to look for, but they’re either non-existent or unmarked on the advance-type maps.
It’s frustrating, because I often live long enough to need a refill, but since one isn’t available my squad is then useless. 