Mechatronic B5 LFR Shotgun Sentry

The Mechatronic Automated Sentry Gun is a tool that deploys a fully autonomous tripod-mounted perimeter defense system that holds a large amount of ammunition and can be placed on the floor or on objects depending on the tactical situation. The Sentry Gun is able to identify friend from foe, which allows team mates to walk safely within its cone-like range, as long as there are no enemies detected in it. However, if an enemy comes within range, the sentry will fire regardless of player presence and damage allies if they are in the way. Use with caution.

The cone of the Sentry Gun has 3 colors that visually communicate the status of the gun to the players:
 * Green : Sentry is active, ammunition is available, and scanning the area for targets.
 * Red : Sentry has identified an enemy/enemies and is engaging the target(s).
 * Grey : Sentry has run out of ammunition and is in idle mode. All functions ceased until further action is taken. Additionally, the Sentry will emit loud beeping sounds as well.

The Shotgun Sentry is a strong tool for maps with a lot of choke points, its high damage makes it able to kill smaller enemies quickly if it is placed in the right spot, facing their back and at a point they will come through. It can also be placed behind doors in order to thin the large amount of enemies which will attack them, making the door last longer which can allow more time to complete scans during an alarm or just kill off remaining enemies. However its low range makes it weaker in areas where enemies will be able to run past it quickly, allowing them to get out of lethal range. Because of its range and rate of fire it is mostly safe to place this sentry in a position where it will be able to hit enemies in the back as this will allow it to kill quicker and with less shots.

It was released in the Rundown Beta and is no longer accessible in Rundown 004.

Pros

 * Adds direct firepower to the team.
 * Takes advantage of the sleeper's weak points if shooting in the back or the head.
 * The gun's targeting scanner can warn on where enemies are coming from.
 * Effective against all enemies and can kill the basic ones in one shot.
 * Can kill an entire wave of Sleepers if placed facing a reinforced door enemy-side, to deal with them while they're hitting the door.

Cons

 * Requires constant tool resource packs to upkeep.
 * A badly placed sentry will be either ammo inefficient or useless (enemies running in front, in long range or past it).
 * If enemies are moving side-to-side the sentry has issues hitting them, resulting in ammo inefficiency.
 * Can only fire targets in front of the gun.
 * Short range
 * Low rate of fire