I finished the turrets and added a full-screen damage indicator.
It took me quite a long time to create model, textures, sounds and laser-effect for the turret. Coding the AI and animation was done in a few hours.
The turret rotates independently on two axes and fires every 2-3 seconds a railgun-lasershot. Before every shot you can hear the laser charging. This gives you a chance to dodge or hide. You can not destroy the turrets, because Grappling Hook is a non-violent game. 😉 So you have to hide or keep moving. I think that supports the agile gameplay.
Should the turret have a real voice or beep like R2D2?