Good catch- it appears stances are the exception rather than the rule.I don't have books on me, but weren't stances specifically worded to be something along the lines of "once you start a stance, it is always there till you decide to stop, can not move, or are unconscious"?
I would be happy to abstract away the advantage and translate it into surprise (in game terms). The problem with that solution is that the abstracted advantage you're arranging for only applies to one side. In the scenario posted early in this thread both the party opening the door and the one waiting on the other side are both seeking an advantage. One is looking for an early shot with a readied action, the other is looking for a defense bonus thanks to a total defense. How do you abstract away both those advantages?It isn't so much that I think there's something fundamentally wrong with being able to be prepared for an attack say. I just think it grants 'an advantage' and that advantage is just as easily created using the surprise round. The enemy breaks down the door, initiating combat, initiative is rolled, a surprise round is now issued against the attackers boiling into the room, and the defenders get first shot. Sure, they may get second shot too, but so it goes. A frontal assault through a door into a room filled with experienced warriors who are ready and waiting for you is going to be ugly...
How do you abstract away both those advantages?
You just roll initiative.
If the attackers win, they get to shoot first, if the defenders win, they get to take total defense.
One thing that D&D doesn't have, and which is hard to really model in the game, is covering/suppressive fire. Realistically a firefight like that would probably consist of the defenders laying in heavy suppressive fire with the goal of pinning the attackers down at the hatch and preventing them from even coming through. The attackers conversely would probably lay in heavy covering fire, lay out smoke or something to degrade the defender's fire, and then try to force their way into the corridor and assault. Truthfully in a realistic scenario such a tactic would also be almost certainly doomed to failure.
Well in a realistic modern day scenario...