Turrets

Turrets are immobile weapons platforms that can be controlled by players or autonomously fire at opponents. Some can be entered like vehicles, but are much more limited in their movement.

Unreal Tournament

UT features two types of automatic turrets in some maps. They cannot be destroyed by players, nor blown up with weapon fire. They do shut down for some time after taking more than 220 points of damage, though.

• 

  Ceiling Cannon
  
  Ceiling-mounted, fires projectiles; projectile type and damage depend on the map

• 

  Minigun Turret
  
  Floor-mounted, rapid-fire trace-hit

The map AS-Overlord features a mortar. That's basically just a fixed-direction projectile spawner, not a "real" turret, though.

The Game of the Year (GOTY) edition of UT also comes with the mod Chaos UT, which features a deployable automatic turret firing rockets and shock balls.

XMP

XMP features the following turrets, all with 600 health. Turrets aren't entered, but controlled from computer screens in its vicinity. Like vehicles, turrets are extra sensitive to EMP damage. One of the turrets can move on a rail, a feature that returns for UT3's turrets. All of the turrets must be manned and take energy from the team's reserves. (The turrets aren't officially named in the actual game, but appear like that in the code.)

• Roundhouse Turret - Fires bullets that have red glow. Classified as "Heavy Machinegun Turret".
• Turret Post or Carnival Turret - Fires red plasma. Classified as "Heavy Machinegun Turret".
• Winged Turret/Cannon - Fires bullets shotgun style. Classified as "Winged Cannon".
• Garden Turret - Fires green, very fast bullets. Classified as "SwingArm Gatling Turret".
• Turret/Mortar Giant - Fires mortar shells. Classified as "Mortar".
• Lowlands Giant Cannon/Mortar - Fires electrical discharge with a delay, somewhat similar to the Ion Cannon of UT2004. Classified as "Mortar".

Unreal 2 and XMP also feature deployable "Auto Turrets" and "Rocket Turrets" that function independently of the players.

Unreal Tournament 2004

UT2004 features a number of different turrets, which can be healed with the Link Gun. The following list shows the default health for each turrets. (Different maps may features turrets with more/less hitpoints if so programmed.)

Default Onslaught maps feature only Energy Turrets, whereas Assault maps feature the other types.

When a player is in an Onslaught Energy Turret, it appears as headless or, more accurately, having a special helmet on.

• 

  Onslaught Energy Turret
  450 health
  
  Primary fires team color hitscan lasers, secondary zooms in. Used in Onslaught.

• 

  Minigun Turret
  1500 or 500 health
  
  Primary fires Minigun bullets, secondary zooms in.

• 

  Link Turret
  750 or 400 health
  
  Works similar to the Link Gun. Controlled via computer panel. Has basic AI when unmanned.

• 

  Mothership Energy Turret or Ball Turret
  650 health
  
  Primary fires laser bolts, secondary similar to Shield Gun. Controlled the same as Link Turret.

• 

  Ion Cannon
  3000 health (2000 by default)
  
  Works similar to the Ion Plasma Tank's turret. Only used in AS-RobotFactory and custom maps.

• 

  Ceiling Sentinel and Floor Sentinel
  1000 (by default) or a ludicrous amount of health
  
  Usually protects the teams' spawn points. Shoots lasers. AI-controlled. Can be floor- or ceiling- mounted. Used in AS-Mothership as a destroyable objective.

Unreal Tournament 3

Turrets in Unreal Tournament 3 have a default health of 400 and are usually mounted on rails to provide limited movement. All turrets have a zoom function as their secondary fire mode.

Energy Turret 

Fires blue energy beams similar to the Onslaught turrets in UT2004.

Damage:	34
Fire rate:	5/s

Rocket Turret 

Fires 4 rockets in quick succession, which are similar to those of the Rocket Launcher without target lock, just a lot faster.

Damage:	80 per rocket
Damage radius:	180UU
Fire rate:	1 burst in 1.8s

Shock Turret 

Fires shock balls, similar to the Shock Rifle's secondary fire mode, but they travel a little faster than Shock Rifle balls and always blow up combo-style.

Damage:	120
Damage radius:	275UU
Fire rate:	2.2/s

Stinger Turret 

Fires stinger shards, similar to the Stinger Minigun's secondary firing mode, but they travel a lot faster.

Damage:	30
Fire rate:	11/s