This adds a mid tech turret, something between the basic gun turrets and lasers.

Compared to gun turrets:
- Higher range (but cannot shoot enemies in melee range)
- Very slow turret traverse (walls and chokepoints are recommended)
- Lower rate of fire, but more damage per bullet (higher ammo efficiency)
- Slightly lower overall DPS (Still much higher than laser turrets)
- More HP
- Requires Green Science and Steel