[Amanaduial the archer]

Hmm - Kransha, I'm not sure how we can work this... Ok, they want to take him out the night before: what, would Herding be causing a mutiny among his men, or trying to kill him that night, in his sleep maybe? The second would probably be better. But how would it be interrupted by elves? I don't think we can have the Lorien-Mirkwood group arriving quite yet - say they'll arrive the next day, so as to have the proposed battle work, if that's ok? But who else could really interrupt - maybe just one of the men, Ehan maybe? They wouldn't necessarily see Herding's face, as he would be cloaked, but he could scarper quickly - the attempt would fail and Koran and Ehan would have no proof of who it was. What do you think?

As you said, they won't want to drop it - so maybe they use a backup plan of starting some sort of mutiny among the special force Southrons, and Herding plans to sneak away from the main army and give the signal for it to start, so that he can be there to kill Koran when he is caught off-guard.

Or, when the Mirkwood elves attack the special force:

Herding maybe holds back on the main force, saying they need to get the trolls across, ignore the small force, it is a small sacrifice etc - while secretly thinking this is a very clean way to kill off Koran - when the second force of elves arrives, from Lorien, archers taking out one of the trolls and some orcs from the trees across the Anduin. The rest attack...

...and at this stage the vengeful Herding can take his chances in desperation to attack Koran himself, in a last desperate attempt.

What do you think, yes, no, maybe?