The Portable Defense Turret will be introduced in the Arctic Update (currently slated for December 2013). Little is known about its price, damage and functionality. The PDT kit will be sold as an item in the Armory.
There are three types of turrets planned:
- Machine Gun
- Rocket Launcher
- Flame Thrower
In a test video (source) machine gun damage was 100 and the rate of fire around 10/second.
As a teaser the developers placed defective turrets in some buildings.