Turret

Bullet Turret
"Kept in reserve by the ship security forces, Bullet Turrets are autonomous defenses that spray energy projectiles in all directions."

Laser Turret
"Intended as a last line of defense, Laser Turrets utilise four high powered beams that cut through friend and foe alike. The power requirements are high and require a regular power cycling phase during which the lasers are harmless."

Maser Turret
"Maser Turrets are constantly modulating their wavelength to allow their beams to travel through friendly targets, ideal for deployment in contested areas. Thickened armour and a faster turning rate make them even more dangerous."