A'iight, if you're reading this, you're probably wanting to know more about the arrancar. So here's how shit's going to go.

Leader: Trax Oomaki
Gin: Tenshi Aku
Tousen: Xenji Ryuuou

There will be either three, or four Espada-equivilants. They're of equal 'rank' but differences in power are most likely going to be present.

Famine: Leon Calibur
War: Azur Makiri
Conquest: Aikken Aichou

Rules:
Do not devour souls in excess.

Do not engage in purposeless combat, be it against shinigami, arrancar, or some other creature.

The release of your ressurection is your promise to eliminate your opponent at the current engagement, or die trying.

Drawing your Zanpaktou is equivalent to a Shinigami's Shikai. So don't just use it. Releasing your sword is the same as Bankai, so REALLY don't use it unless you're getting shat on.
More to be added.