Rodney Mulraney
First Post
What are you watching for your opponent to do? Are you waiting for them to be distracted, or is it something else?
There's also the possibility of the PC's path going through heavily obscured areas. I'm not sure how you see a retcon playing into this, though. I'd imagine such circumstances either exist or not according to the shared fiction, which is usually up to the DM to establish and adjudicate.
Except for the DM's ability to rule that an opponent is distracted, I don't know what rules you mean. Did you have some in mind?
Hiding and stealth are totally different things. To hide you need to get concealed visibly, to stealth you do not. In combat creatures are "alert", otherwise they might not be. You can stealth past creatures that are not "alert" without maintaining concealment, you just need to beat their PP; ie leave a small enough "percievable" footprint.
Perception is NOT vision; it is the totality of a creatures perceptual apparatus. Hiding has a visual requirement - you need concealment, stealth is about perception - you need to leave a low perceptual footprint.
Even being invisible does not make you hidden; but you can always try to hide if you are invisible; since you always meet the requirement of being visibly concealed...
Anyway it is worth listening to the podcast I linked earlier if these mechanics of the game are still unsure in your mind.