Let's say I've set up guards in a room in order to trigger some sort of combat encounter. However, one of my players decides he's going to sneak up on one and take him out.
How do you guys roll that?
A stealth check to sneak up on him, and then a melee check? What determines a succesful take down?
Do you guys roll perception/or vigilance on the other guards to see if they noticed anything?
Do you track combat moves at this point, even if the other guards have no idea what's going on?