The lieutenant remembers a weapon demonstration during Boot Camp where a HMG pierced concrete slabs, transparisteel and other materials. It usualy took just a couple of seconds to do so.
OOC:
Your int/shoot roll was correct. =) As that's not combat, we use 2d6 instead of 1d20 and just the attribute + skill level.
Here is the transparisteel wall stats:
- Armor Class (to hit): 5
- Damage reduction (deduct from all damage): 10
- Hit points (every 5 foot wall): 5
- Immune to sonic damage.
So, 15 damage in a single shot can break one 5 foot section at once. It's unlikely but feasible for the HMG (3d6 dmg) to do that in a round. Easier to do in multiple ones. Its also possible with other weapons, although the damage reduction will make a significant difference with their smaller dice.