GDI
The Global Defense Initiative is a UN chartered army.

 

Infantry

Rife Infantry
Prerequisite: Barracks
Cost: 100
Weapon: Small Rifle
Armor: None
Tech Level: 1

Grenadier
Prerequisite: Barracks
Cost: 160
Weapon: Grenades
Armor: None
Tech Level: 1

Rocket Soldier
Prerequisite: Barracks
Cost: 300
Weapon: Rocket Launcher
Armor: None
Tech Level: 1

Engineer
Prerequisite: Barracks
Cost: 500
Weapon: None
Armor: None
Tech Level: 3
Captures Enemy Buildings

Medic
Prerequisite: Barracks
Cost: 800
Weapon: None
Armor: None
Tech Level: 1
Heals Infantry

Spy
Prerequisite: Communications Center
Cost: 500
Weapon: None
Armor: None
Tech Level: 4
Infiltrates Enemy Buildings

Thief
Prerequisite: Tech Center
Cost: 500
Weapon: None
Armor: None
Tech Level: 8
Captures Money from Enemy Refineries and Silos

Mechanic
Prerequisite: Service Depot
Cost: 950
Weapon: None
Armor: None
Tech Level: 4
Repairs Vehicles

Tanya
Prerequisite: Tech Center
Cost: 1200
Weapon: Colt 45, C4 Explosives
Armor: None
Tech Level: 8
Destroys Buildings with C4

 

Vehicles

Ore Truck
Prerequisite: Barracks
Cost: 1400
Weapon: None
Armor: Heavy
Tech Level: 2
Harvest Ore

Humm-vee
Prerequisite: War Factory
Cost: 600
Weapon: M-60 Machine-gun
Armor: Light
Tech Level: 2

Medium Tank
Prerequisite: War Factory
Cost: 800
Weapon: 105mm Cannon
Armor: Heavy
Tech Level: 4

APC
Prerequisite: Barracks
Cost: 800
Weapon: M-60 Machine-gun
Armor: Heavy
Tech Level: 3
Carries Up To 5 Infantry

Rocket Launcher
Prerequisite: Communications Center
Cost: 800
Weapon: Multiple Launch Rocket System
Armor: Medium
Tech Level: 5

Mammoth Tank
Prerequisite: Tech Center
Cost: 1500
Weapon: Twin 120mm Cannons & Missile Packs
Armor: Heavy
Tech Level: 7

Mobile Construction Vehicle
Prerequisite: Service Depot
Cost: 2500
Weapon: None
Armor: Heavy
Tech Level: 8
Deploys Into Construction Yard

 

Naval

Gunboat
Prerequisite: Naval Yard
Cost: 500
Weapon: 2-inch Deck Gun & Depth-charges
Armor: Light
Tech Level: 3

Destroyer
Prerequisite: Naval Yard
Cost: 1000
Weapon: Stinger Missiles & Depth-charges
Armor: Medium
Tech Level: 4

Transport
Prerequisite: Naval Yard
Cost: 700
Weapon: None
Armor: Medium
Tech Level: 2
Carries Up To 5 Units

Cruiser
Prerequisite: Tech Center
Cost: 2000
Weapon: 8-inch Artillery Cannons
Armor: Heavy
Tech Level: 7

 

Aircraft

Apache Longbow
Prerequisite: Helipad
Cost: 1200
Weapon: Hellfire Missiles
Armor: Heavy
Tech Level: 6

Transport Helicopter
Prerequisite: Helipad
Cost: 1200
Weapon: None
Armor: Medium
Tech Level: 8
Carries Up To 5 Infantry

 

Structures

Sandbag Barrier
Prerequisite: Construction Yard
Cost: 25
Weapon: None
Armor: Light
Tech Level: 1
Passive Defense

Concrete Wall
Prerequisite: Construction Yard
Cost: 100
Weapon: None
Armor: Heavy
Tech Level: 5
Passive Defense

Power Plant
Prerequisite: Construction Yard
Cost: 300
Weapon: None
Armor: Light
Tech Level: 1
Provides Power for Bases

Advanced Power Plant
Prerequisite: Power Plant
Cost: 700
Weapon: None
Armor: Light
Tech Level: 5
Provides More Power for Bases

Ore Refinery
Prerequisite: Power Plant
Cost: 2000
Weapon: None
Armor: Light
Tech Level: 1
Drop-off for Ore, Comes With One Free Ore Truck

Silo
Prerequisite: Ore Refinery
Cost: 300
Weapon: None
Armor: Light
Tech Level: 1
Additional Storage for Ore

Barracks
Prerequisite: Power Plant
Cost: 300
Weapon: None
Armor: Light
Tech Level: 1
Produces Infantry

Communications Center
Prerequisite: Ore Refinery
Cost: 1000
Weapon: None
Armor: Light
Tech Level: 2
Provides Radar

War Factory
Prerequisite: Ore Refinery
Cost: 2000
Weapon: None
Armor: Light
Tech Level: 2
Constructs Vehicles

Naval Yard
Prerequisite: Power Plant
Cost: 650
Weapon: None
Armor: Light
Tech Level: 2
Constructs Naval Vessels

Helipad
Prerequisite: Communication Center
Cost: 300
Weapon: None
Armor: Light
Tech Level: 6
Constructs & Reloads Helicopters

Pillbox
Prerequisite: Refinary
Cost: 400
Weapon: Vuclan Cannon
Armor: Medium
Tech Level: 1
Base Defense

Advanced Guard Tower
Prerequisite: Communications Center
Cost: 1000
Weapon: Tomahawk Missile
Armor: Medium
Tech Level: 5
Anti-Air and Ground Base Defense

Service Depot
Prerequisite: War Factory
Cost: 1200
Weapon: None
Armor: Light
Tech Level: 2
Repairs Vehicles

Tech Center
Prerequisite: Communications Center
Cost: 1500
Weapon: None
Armor: Light
Tech Level: 4
Provides Access to High-Tech Construction Options and GPS Satellite

Missile Silo
Prerequisite: Tech Center
Cost: 2500
Weapon: None
Armor: Heavy
Tech Level: 10
Launches Nuclear Missiles