Interior Turret
The Interior Turret is an automatic weapon that will target and fire upon a variety of targets. Which targets it will fire upon depend on how the control panel settings have been configured, with the options being: decoys, meteors, enemy faction players, enemy faction ships, and anything that moves (be careful with this option). It will only engage these targets if it is within its maximum engagement range, which is another control panel setting. It can also be controlled manually via a button on the control panel. All of these options can alternatively be accessed by adding them to the toolbar, or via buttons, timers, and/or programming.
Whilst it is presumably intended to be an anti-personnel weapon for the rooms and corridors of a ship, it is functionally identical to the Gatling Turret, with the only unique feature being that it is considerably smaller (and less powerful). Hence, it works perfectly well as an alternative in situations where a full-size turret won't fit, or if you cannot afford the resources in Survival Mode.