Sentinel Drone

The Sentinel Drone is an automated quadroter appearing as a Buildable on the Black Ice Zombies Survival map Excavation Site 64. Once deployed, it will act as the player's protection, similar to the AH-6 Overwatch killstreak from Call of Duty: Modern Warfare 3. It will shoot Zombies, acquire Power-Ups and revive Downed players. The Sentinel Drone acts very similar to the Maxis Drone, as it lasts for 90 seconds.

Location of Parts
The Sentinel Drone requires three parts in order to be crafted at the Bench at the Church.

The first part is located at three different locations. The first possible location is along the road leading from the Church to the fourth Power Generator. The second possible location is on the other road leading to the fifth Power Generator and Excavation Site. The third possible location is beneath the Excavation Site near the table with the Black Ice communications radios.
 * Generator

The second part has two possible locations. The first possible location is in an open crate beside the Pack-A-Punch Machine at the Excavation Site. The second possible location is beside the table beneath the Excavation Site.
 * Frame

The third part has two possible locations. These are either roads leading to the second and third Power Generators on the Black Ice transport vehicles.
 * Rotors

The fourth part is located at a single location. It can be found at the Church beside the Black Ice radio on top of the weapons crate.
 * Guns

Trivia

 * The Sentinel Drone has an automated deeply-pitched voice.
 * The Sentinel Drone was built by Dr. Wilhelm Schultz, as his name is written on the right side of the drone. Though, this cannot be seen unless its stationary on the Bench at the Church.