This thread has been through the ringer. So many erroneous statements have made it very hard to truly "know" what is and isn't correct. I'm going to try and clear up some of what I think are misstated comments.
Curulon wrote:
Players never decide who the enemy attacks.
Yes they do. When the Heroes are equal the number or outnumber the enemies, the players choose the engagement.
The Engagement means that the hero attacks that foe. And the foe is forced to attack that hero (or not attack at all) - barring any special maneuver or ability of that enemy.
Halbarad wrote:
Three characters choose Forward, Open and Defensive. Because the Orc attackers do not outnumber the characters in these stances by more than two to one, the fourth character can choose to be in Rearward stance.
Because they outnumber the characters, the LM now gets to choose who the Orcs attack. He could place them as he wishes as long as each character has at least one opponent. He cannot place any in combat with the player in Rearward. If there were a seventh Orc, the fourth character could not choose Rearward.
If the number of total enemies is more than double the total number of allies one cannot be in Rear Stance. It's not more than two-to-one in melee stance. So the seventh orc still could not attack the archer. A 9th orc could.
Elfcrusher wrote:
But I don't think the OP was asking how the rule works, he was saying the rule was limiting (or even dumb). E.g., what if 10 orcs were attacking three heroes, but all 10 of the orcs went for the dwarf because they recognize him? Why can't the other characters choose Rearward if they aren't being attacked?
Again, my answer is that too many exceptions to the rule is a slippery slope to miniatures and a grid. The rules already give the LM some leeway for terrain situations; opening it up even more would (in my opinion) beg for the players to start rules lawyering.
This is already disallowed by the rules. The engagement rules specifically state that ALL combatants must be assigned an engagement before surplus are doubled onto an opponent.
So if there were 10 orcs in the case of the four heroes (each hero in one of the four different stances), the rearward would be impossible, (since the orcs outnumber the heroes more than 2:1, not just outnumber those in melee stance), the orcs are allowed to select engagements (since they outnumber the heroes) and the first four orcs to approach the heroes must distribute themselves to one against each hero. The last six can then distribute their engagements as they wish with the following caveat: No more than (i think it's 4) man-sized targets can attack a single target. So of the last six orcs, they can go anywhere they want, but no more than 3 of those surplus orcs can opt to face off any one of the already engaged heroes. They could instead fire ranged weapons.
Every round thereafter, the heroes select a stance, and the orcs assign the engagements; so long as 9 or more are present, the hero's can have no rearward stance. After the heroes (assuming they do) thin the ranks of orcs from 10 to 8, the hero's can now upon selection of stances, opt to have one switch to their bow, the orc then still assign engagements (so long as there's more than five orcs remaining) but cannot assign any one to the archer/rearwards stance hero - and each other three heroes have to be assigned at least one orc by the LM. After the heroes drop the ranks of the orcs to 4 (assuming they do), then the heroes can choose their stance, including a rearward, AND selects their engagements - assuring that each hero in a forward stance assigns himself to an orc that is not already engaged, and THEN in effect, the heroes are choosing who the orcs attack. Once the heroes drop the orcs to 2 or less (assuming they do) the heroes can select their stance - including a rearward, assign their melee stance engagements, and then due to surplus of hero vs orcs, they can double up on one of the orcs so long as each are assigned to an engagement. IN this case - since there are two heroes engaged on a single orc, the LM can choose which of those two heroes it attacks; but in the case of the one hero vs one orc, the player has in effect selected who that orc will be attacking; that player character.
As for the "rules governing rearward stance" being restrictive; not wanting to sound like a ass, but all rules are restrictive. That's what rules are. If a particular rule in an RPG is too restrictive for your taste, by all means, change it, morph it, ignore, whatever. There's nothing wrong in having a different preference. But as written it is a rule and thus it is restrictive. There are valid reasons for that rule to exist. My advice is to understand all the previously hashed rules well enough to apply them, and then see if it really creates a sore-spot during a game. What I would caution however is to off-handedly (fob off???) any rule and change it because you don't like it - but not liking it is because you're doing other things wrong that make the rule more wonky. When all are applied accurately, it's actually a very well-thought out and balanced rule, and easy to employ.
If after a test-run using it, and doing everything else correctly, you conclude that it still is too restrictive for your preference, there's nothing saying you can't change it for your game.
Good luck.
Robert