One man's Heroic stand is another's egregious failure of the rules. Still being of the latter opinion, I feel this extreme bit of door-guarding could use a simpler solution to break it up. This old post, inspired by ghan, then knightkrawler and some fans at the German HQ Cooperation site, adds a bit of realism to this unbalanced fight without adding any extra dice-rolling:
Daedalus wrote:Push Back
When a figure loses one or more Body Points during a melee fight, an attacker may choose to use the momentum of the attack to push that opponent back or to the side one square. If there's a wall or other immovable object behind or next to the opponent, pushing back in that direction is not possible. Figures also count as immovable objects if their number, including the defending opponent, exceeds the Body Points lost from the attack. If instead the total number of figures is less than or equal to the Body Points lost, then they may all be pushed in the same direction. Push Back isn't possible if the defending opponent is killed.
Example:
A Barbarian, flanked by the Dwarf, Elf, and Wizard guards a doorway against a group of 3 Fimiri who want to get to the Elf and Wizard. A Fimir facing the Barbarian hits for 1 BP of damage. As the Dwarf and Barbarian together (2) is greater than 1 BP, the Barbarian can't be moved (the Dwarf kindly pushes him back into the doorway). Zargon moves the Fimir to the side, allowing a second Fimir to attack. It pastes the Barbarian for 2 BP of damage. That's equal to or greater than 2 figures, so the Fimir pushes back the Barbarian and the Dwarf to the left. A third Fimir enthusiastically jumps forward next to the Elf to attack.
Notes:
A lucky attack may push back an opponent and up to 3 figures with a Battle Axe, possibly more if a Potion of Strength is used. Awesome power and luck can change the direction of a battle in truly heroic ways with this modification.
I'm in favor of requiring normal movement to advance into an emptied square. That means it may take more than one turn to advance into a room or corroidor as a Hero moves back into the vacated square to attack on his turn. I don't see this as a problem, as extra monsters can advance to the vacated square on Morcar's/Zargon's turn before this happens.
Basically, if the Dwarf wants to try to hold back the throng of monsters in this Quest by himself, he will be backed up each time he suffers 1 or more Body Points damage. Chances are the monsters will push him back into the central chamber and spill in. It would be wise for at least one other Hero to back him up and prevent this.
Here's a size option that may or may not be worth the extra complication:
Bigger-than-Hero figures like Ogres count as 2 figures for purposes of being immovable objects. They also ignore 1 supporting figure when pushing back a defender. Conversly, less bulky figures like Goblins and Skeletons count as 1/2 a figure when presented as immovable objects. These smaller monsters must also score 2 Body Points of damage to move a single defending Hero.