Command & Conquer/GDI structures

Power Plant

 * Cost 300

These structure provide power to bases.

Refinery
Cost 2000

Provides a Harvester to seek out Tiberium to gain cash. Build more than one for good things to happen.

Barracks

 * Cost 300

Trains infantry

Advanced Power Plant

 * Cost 700

Same as Power Plants only provides more power.

Helipad

 * Cost 1500 for an expensive structure why its build time is short?

This production structure is used to make Orcas for GDI and Apaches for Nod.

Weapons Factory

 * Cost 2000 what to expect from a factory

Used to make tanks.

Repair Bay

 * Cost 1200

Used to repair tanks

Advance Communication Center

 * Cost 2800

Used for ION Cannon controls and radar.

Communications center

 * Cost 1000

Provides Radar.

Advance Guard Tower

 * Range Long
 * Weapon Missiles
 * Cost 1000

This thing has good weapons and armour.

Guard Tower

 * Cost 500
 * Range Medium because Artillery can destroy it
 * Weapon Guns

This thing has chainguns for enemy engineers.