Anti-Personnel Control Squad

The Anti-Personnel Control Squad was an elite squad of the Military Police Brigade led by Kenny Ackerman. Its members were very capable members of the Military Police Brigade and used Anti-personnel vertical maneuvering equipment. While the official purpose of the creation of the quad was to thwart the Survey Corps, all the soldiers under Kenny's command knew their chief's real goal, which was to become a Titan shifter and gain the Coordinate.

History
The Anti-Personnel Control Squad was created by Kenny Ackerman two years before the Fall of Wall Maria.

The Uprising arc
Kenny and his men are sent to collect Eren Yeager and Historia Reiss who were under the care of the Reeves Company. They checked their prisonners to discover they had small blades hidden on them then proceeded to kill Dimo Reeves and his men, having guessed the company had betrayed them.