Sorry about all the questions, but I want to make sure I'm reading all of this correctly. The example provided seems to consolidate a few steps in the process and makes it less than clear. The target for the examples in this case is a simple door (2 Structure/4 Armor). The goal is to destroy the barrier, rather than attack through it, so the door's Armor rating in this case is basically just additional Structure rating (unlike when trying to attack through a door). (Rolling on IC, but not linking).
Example #1:
Ork Ganger (STR 8, AGL 4, Physical Limit: 8, Unarmed Combat 4, wearing Knucks)
Attacks the door (8d6): 2 hits, DV of attack set to 11P (STR +1 (knucks) + 2 (hits from test). Since it is a melee attack, the DV is unmodified.
Door Resistance Test (6d6): 2 hits, reducing the damage taken to 9P
Resolution: The door has 2 structure. For each two boxes of damage, the ork knocked a 1-meter hole in the door. With 9P, he basically punched the door to splinters as a 4 square meter hole is basically 12'x12'.
Example #2 (Somewhat based on where the book example kind of loses me)
Dwarf Mage (MAG 6, Force 6, Spellcasting 6, Casting Shatter)
Casts Shatter (F6) on door (12d6): 6 hits, DV of the attack is set to 6P because it is a direct damage spell. As a combat spell, no modifier.
Door Resistance Test (2d6): 0 hits, no damage reduction.
Resolution: The door has 2 structure. For each two boxes of damage. the dwarf knocked a 1-meter hole in the door. A 3 meter hole is pretty good for opening a big enough hole for orc-sized and smaller folks to move through.
Do the above scenarios seem accurate? Am I missing something? I thought it was particularly odd that armor doesn't seem to do much for an object. In fact, for the purpose of destroying a barrier, it would be better for the barrier to have an 8 Structure, 0 Armor than a 4 Structure, 4 Armor.
Edit: Edited the door's "resistance" test in the spell example. Still not sure how that works, to be honest. Also removed editorial content about the example. It seems strange to include a "lucky" roll without describing how many dice he rolled initially or what resistance was involved.