Structures

NEA

NEA Power Plant - Provides power for the NEA.

NEA Refinery - Turns tiberium into spendable funds.

NEA Barracks - Trains NEA Infantry.

NEA Vehicle Assembler - Builds NEA Vehicles.

NEA Command Bunker - Unlocks advanced structures.

NEA Air Base - Builds NEA Aircraft.

NEA Weapons Centre - Needed to build advanced infantry.

NEA Tech Hub - Needed to build advanced vehicles, aircraft and structures.

NEA Support Command - Provides access to support powers.

NEA Crane - Gives the NEA an extra build queue.

NEA Pulse Cannon - Primary infantry defence.

NEA Patriot Missile System - Primary defence against vehicles and aircraft.

NEA Destructor Cannon - Advanced defence effective against vehicles.

NEA Tiberium Silo - Stores excess tiberium.

NEA Heavy Artillery - The NEA's super weapon, this structures takes 3.5 minutes to charge and then fires a shell. 

GDI

Mutant Hovel - Allows the training of Mutant Marauder Squads.

Emp Control Centre - Fires a emp burst with disables vehicles and structures. Only one may be built at once.

Defence Tower - Defensive tower effective against vehicles. Only two may be build at one time.

NOD
 

Mutant Hovel - Allows the training of Mutant Marauder Squads.

Emp Control Centre - Fires a emp burst with disables vehicles and structures. Only one may be built at once.

Defence Tower - Defensive tower effective against vehicles. Only two may be build at one time.

SCRIN

Mutant Hovel - Allows the training of Mutant Marauder Squads.

Emp Control Centre - Fires a emp burst with disables vehicles and structures. Only one may be built at once.

Defence Tower - Defensive tower effective against vehicles. Only two may be build at one time.