This may sound insignificant but I will say my opinion about the route we should choose and confirm it to the host via PM it is a Random Role Selection Mechanism.But what's really interesting in my opinion is that these random mechanisms can be very sneaky.
I'll take an example like when someone says if he has chosen the route and the color.
Of some of these colors the host might want to make us think if that color represents a certain fraction, but it might be a trap. Maybe...
It could be that the color is different from the color of the faction we are used to playing and it's just a random route that determines our role later depending on who confirms it first.
I'm still not clear about this plus why The Sabaody Archipelago should be the place. Considering in this place there was a very interesting battle from various parties in One Piece and.... ofc Time Skip.