To my knowledge, the GM main role is to stimulate rp rather than judge it, and as such, they are not picked based on how good their Naruto-verse knowledge is and insight overall, it's not like Neji observed their ability to judge accurately and what not of course people that stimulate rp by the means of events are usually good at stuff like that, yet that does not mean they can't make errors, and big ones for that matter. Just my thoughts.
Just because they hold an administrative position of sorts does not make them any less human. They may as well be emotionally attached to a player or village, and as such, most would fail to control themselves to the extent of being completely unbiased. And as stated, it's pretty much like any other official fight of sorts, about as long as the one's judgement, insight, opinion, etc. is deemed to be trustworthy by those involved it flies, it's needless to say that if a party, for whatever reason, does not acknowledge a gamemaster as apt to judge, it would have the reverse effect of non-GM trusted players, and that of them not being relied on as judges. Unlike actual moderators that judge things such as breaking server rules, their verdicts and what not are nowhere close to ultimate. People aren't obliged to accept judges they do not acknowledge as competent. However, that is hardly ever the case with the current game masters.
If not for the abundant reason I stated here and in my prior post, generally acknowledged non-GM judges should be in the picture if called upon so that something that can be as overloading as an entire war shouldn't all be placed on 3 people alone. If not resulting in inefficiency and things dragging on for waaaaay too long, it would, at the very least, result in giving them a hernia of sorts.
Also, there is something on here I have to disagree with, something like having to secure a zone of sorts prior to attacking the actual village. I see at least two scenarios that should exempt from that rule due to plain and simple logic at the very least:
1. The attackers sending an attack of sorts in the direction of the village that has the ability to make it there and the defenders of the said zone fail to stop it. Like a tailed beast bomb for instance.
2. One or more attackers managing to make it past the defenders, this could occur under multiple scenarios:
-Merely dashing at the village with a defensive mode that the defenders fail to penetrate.
-Getting passed them with speeds the defenders can't match up to, like the 7'th gate for example.
-Or in the case in which it's and 1+x vs 1+x(or Y given that outnumbering, if chosen by a partly that highly outnumbers the other in human resources would seem feasible) part of the attacker party could manage to keep busy the entire enemy party while their comrades pass them. For instance, let's say that Me, Yuumei, Zyeta and Eric attack Suna, would Eric manage to catch the opposing Suna party in his shadow and paralyze them as me and the other to march forth it would seem highly legitimate in my view.
As for me stating Kayenta might end up being biased in a Suna related war, I've said so due to the fact, that to my knowledge, she is attached to that village the most. I could be wrong though, it would be idiotic for me, and anyone for that matter, to say that they truly know a person. However if a decent amount of participants would share that view, it's best to not have a judged deemed as biased by one of the involved parties in order to avoid accusations, bashing, and chaos overall.