Team of 3 or 4 or 5.

Advantage :
more frequent seabattle

No replicant.

Advantage :
No more blaming other player for the outcome. All can play without fear.
No more replicant manipulation.

Group seabattle

Advantage :
some player can group so they can play as they want. group "A" will enter the seabattle and face group "B" (still faction base)
weaker player or strong player can choose who they want to go with. so it will not make the strong player get angry and end up bc or kill a weaker player for going.
also will let the weaker player have fun without fear.

EVERYONE have their own playstyle.