I've been killed in forest several times w/o any idea where the shot came from and so far been just thinking con was better in hiding than I was for searching. But I've seen tanks shooting through walls, and that's bit annoying, when in receiving end. And M8 pinging base guns from slope one by one, from D so far even with full zoom of 88 could see it as a tiny spot.
Also durability of Wirbels is sometimes amazing. I was told APs often go through w/o causing damage. Yesterday I caught one in our bomber hangar. I was w/ Tiger, so I used HEs from almost point blanc. Three shots had no effect at all, not even a flash of hit. I changed back to AP and vaporized it w/ one shot.
Are damage models based on hitpoints in AH? As my Panther has been killed by gunfire of Spitfire, 1 pass. No rockets or bombs, just guns.