Elfcrusher wrote: .........In other words, I think circumstances play a huge role.
absolutely agree here and this is well within the responsibility of the LM to decide
Elfcrusher wrote: On the other hand, it depends on how you are viewing Shadow points. Is it some sort of divine punishment for being evil? Or does it represent the tainting of your own "soul"? This gets back to the earlier discussion about running away to save your own skin. Is it evil? I don't think so. But certainly you don't escape unscathed, emotionally, for abandoning your friends.
And once again, acting as Tolwen or not, you strike the core of this thread, Elfcrusher.
Frankly, I can't reach a 100% decision about this. My first thought was NO Shadow points. But there may well be some permanent taint: realised later perhaps? Or can the guilt be
avoided with a test against Corruption to avoid the Shadow gain? This is one of those examples of a question raised in the forum that I don't think there is a hard & fast rule for. Such actions do have a RISK of Shadow gain, no doubt. A good LM would have to listen to the comments & reactions of the players before deciding how to apply that risk.
e.g. If the archers are preventing these men from getting away, they have a different motivation to a group trying to eliminate every last trace of their attackers.
SPOILER ALERT NEEDED HERE FOR DofM
As an extra: the LM knows that these men are only potentially evil: perhaps the affect on the souls of the fellowship can be applied when the truth of Mogdred's men's nature is realised (say at the Folk Moot). If they were fundamentally evil the fellowship would gain a sense of doing the right thing; if Mogdred's men are revealed as well-intentioned but on a different track, then the fellowship should feel remorse and guilt. In the latter case the Shadow is delivered at a different time.
(Sorry: long post!)