A Ceiling Turret just before it fires on the player in MAP31: Training Facility

Ceiling Turrets are enemies found in the game Strife. If the alarm is active or they have been attacked directly, then they begin attacking the player as soon as he is in their line of sight. They are somewhat hard to destroy, being hard to aim at and having a respectable 125 Hit Points.

Strife monsters
acolyte | Bishop | ceiling turret | crusader | Entity | inquisitor | Loremaster | Macil | Oracle | Programmer | reaver | rebel | sentinel | spectre | stalker | templar