Monster doing things: DRs?
The MB and other Borg rules state that monsters and NPCs roll a straight d20 against the DR, no modifiers. Fair, but should DRs be modified based on which creature is doing what?
For instance, let’s say a PC wants to break down a door. It’s a sturdy, banded iron door. DR 16, let’s say.
Then, a troll comes along and wants to break down the same door. Is it still DR 16, despite the troll reasonably being bigger and stronger than any PC? Or is it more like a DR 12 *for a troll* to break down the door, relatively speaking? Meanwhile, a goblin would be DR 18 or even higher to break down the door (or it just wouldn’t be possible)?
What if the PCs wanted to brace the aforementioned door against a troll entering? Would that still be on the troll to roll, possibly against a harder DR representing the PCs working against it, or would it become a DR 14 Strength or something on the PCs to brace the door?
On a different note, I presume that ability contests flip the burden, so an NPC urchin trying to pickpocket a PC would require the PC to test DR Presence or Agility against something like 14 to catch or spot their pocket being picked, is that right?