Tank

Tanks are minor security forces encountered in Sly 2: Band of Thieves and Sly 3: Honor Among Thieves. They were employed by the Contessa to protect her castle and by Neyla on her war against the Contessa. A tank is also used by members of the Cooper Gang on several occasions.

They were also employed by the Black Baron to destroy the Team Cooper hangar.

Sly 2: Band of Thieves
Neyla also used these tanks to patrol around her HQ. These tanks possessed a level of extreme durability, as well as acute senses. They were capable of firing projectiles for ammunition (though they were very slow in concern to speed) and would shoot anything within their path. They were also capable of projecting an electric force field, which would shock anything within its radius. Unlike Neyla's INTERPOL tanks, these tanks could not be destroyed through any means.

In "Jailbreak," there's one tank guarding the Contessa's prison. In "Operation: Trojan Tank," Bentley and Sly Cooper steal a tank and use it to get past the prison security gates and gain access to Murray's cell block.

In "A Tangled Web," there are numerous tanks guarding Neyla's headquarters and Contessa's castle.

In "Tank Showdown," Murray steals one of Contessa's tanks and uses it to destroy 6 of Neyla's tanks. He also operates a tank in "Operation: High Road" to prevent Carmelita Fox from fleeing with Clockwerk's eye.

Sly 3: Honor Among Thieves
The Black Baron's tanks only appeared in the job "Cooper Hangar Defense". In that job, Penelope had to remove their cannons by using her RC chopper's cable in order to prevent them, along with several other Black Baron guards, from destroying the Cooper Gang's hangar.

Trivia

 * In A Tangled Web, these tanks will sometimes glitch. If the player gets caught, it will stay in its place and continue firing even if the player are out of sight.
 * If Bentley attempts to blow up the Contessa's tanks with his bombs, they will stop moving and shoot at him in retaliation.
 * The tanks in Sly 2 looks similar to the Daleks from Doctor Who.