Perhaps there is even another section of Shinigami that the Gotei 13, Omnitsuko and the Kido Corps that could revolve around more secretive missions. But then again, that's a large part of what the Omnitsuko does.
I also have a strong belief that the Royal Guard has a power that is beyond the Bankai and doesn't revolve around Hollowfication
__________________
---------------------------------------------------------------------
(\_/) Copy this bunny to your sigature
(Oo) to help him acheive world domination!
( W)
---------------------------------------------------------------------
|