UNSC Defensive Structures

Most of the UNSC’s defensive structures come in the form of automated weapons. The standard Turret does moderate damage to most targets, but it can also be modified to counter specific unit types. A well-chosen Turret conversion can make a big difference in repelling enemy forces; an ill-chosen conversion, on the other hand, can be far less effective than a standard Turret.

In addition to the standard Turret (and its three available conversions), advanced UNSC bases can support Siege Turrets. These automated cannons can do massive damage at long range, but they’re relatively ineffective against nearby enemies.

The Watchtower serves as the UNSC’s surveillance structure—building one extends line of sight and helps ensure that cloaked enemies don’t approach your base unnoticed.

Turret

Primary Role: Automated Base Defense

Global Upgrades: None

Production: Anti-Infantry Turret (conversion), Anti-Vehicle Turret (conversion), Anti-Air Turret (conversion)

Turret Construction

Icon	Name	Description	Tech Level	Requirements	Requirements	Requirements	Time
	Turret	Standard Turret. Can be converted into Anti-Infantry, Anti-Vehicle, or Anti-Air Turret.	0	—	300	—	40s

Anti-Infantry Turret

Primary Role: Automated Anti-Infantry

Global Upgrades: None

Production: Anti-Vehicle Turret (conversion), Anti-Air Turret (conversion)

Anti-Infantry Turret Conversion

Icon	Name	Description	Tech Level	Requirements	Requirements	Requirements	Time
	Anti-Infantry Turret	Converts existing Turret to Anti-Infantry Turret. Can be converted to Anti-Vehicle or Anti-Air Turret.	1	—	300	—	20s

Anti-Vehicle Turret

Primary Role: Automated Anti-Vehicle

Global Upgrades: None

Production: Anti-Infantry Turret (conversion), Anti-Air Turret (conversion)

Anti-Vehicle Turret Conversion

Icon	Name	Description	Tech Level	Requirements	Requirements	Requirements	Time
	Anti-Vehicle Turret	Converts existing Turret to Anti-Vehicle Turret. Can be converted to Anti-Infantry or Anti-Air Turret.	1	—	300	—	20s

Anti-Air Turret

Primary Role: Automated Anti-Air

Global Upgrades: None

Production: Anti-Infantry Turret (conversion), Anti-Vehicle Turret (conversion)

Anti-Air Turret Conversion

Icon	Name	Description	Tech Level	Requirements	Requirements	Requirements	Time
	Anti-Air Turret	Converts existing Turret to Anti-Air Turret. Can be converted to Anti-Infantry or Anti-Vehicle Turret.	1	—	300	—	20s

Watchtower

Primary Role: Surveillance

Global Upgrades: None

Production: None

Watchtower Construction

Icon	Name	Description	Tech Level	Requirements	Requirements	Requirements	Time
	Watchtower	(Surveillance) Increases line of sight. Detects cloaked units.	0	—	100	—	20s

Siege Turret

Primary Role: Automated Base Defense

Global Upgrades: None

Production: None

Siege Turret Construction

Icon	Name	Description	Tech Level	Requirements	Requirements	Requirements	Time
	Siege Turret	Long range. High damage. Vulnerable at close range.	2	—	900	—	50s