[SUBMISSION] Spider Turret

We have 3D props now, so why not a 3D monster? This one is designed to blend in with the map architecture and provide a stationary, Arachnotron-type turret enemy.

Credits:
Code: Captain Toenail
GLDefs: GZDoom (lights.pk3), Captain Toenail
Sounds: Doom64
Sprites: Doom
Sprite Edit: Captain Toenail
Idea Base: Helldivers 2 sentry turrets

Information:
Name: Spider Turret
Difficulty: Medium
Connections: Doom2 iwad
Summon: Turret_Base
Melee: No
Distance: Projectile
Type: Demon, Cybernetic
Brightmaps: Yes
Actor modification: None
ACS: None

Description:

The Spider Turret is an extension of the Spider Mastermind's power, used to
remotely view and defend key areas from the human counter-invasion.

This biomechanical horror is comprised of a demon-brain targeting system and
ever-watchful eye, fused to a mounted plasma gun emplacement.

Take advantage of the turret’s limited turning speed to outmanoeuvre its
deadly line of fire, and bombard it with heavy weapons to make it flinch.

This is a 3D enemy and is only visible in Hardware mode.

Added