ANBU Hell Squad

The ANBU Hell Squad is an elite unit of  that are explicitly reserved for only the most dangerous of missions available, and are only dispatched when aware of   involved, or when the existence of their village is threatned.

Overview
The ANBU Hell Squad was formed when Shinsuke Hakai was officially promoted to and was allowed to led a team composed of other Anbu, and the group was named by Shinsuke himself.

Ambush shinobi from Iwagakure
Shinsuke and his team were ordered to secretly oversee a meeting between and -nin, and after witnessing the Iwa-nin betraying the  from Konoha, Shinsuke and his group intervened and successfully wiped out the opposition, saving the Konoha-nin from death.
 * Assigned to: Shinsuke Hakai
 * Outcome: Success

Intercept the Seven Ninja Swordsmen of the Mist
The mission itself was merely an ambush planned by Shinsuke's own clansmen to have him assassinated for going up against their ideals, and Shinsuke's team walked directly onto a trap, but despite the ambush, the team was saved by Noa Hyūga and her squad.
 * Assigned to: Shinsuke Hakai
 * Outcome: Failure