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Structures of the two factions, Arm and Core, in Total Annihilation.
Structures Common to Both Sides
These structures (or buildings) look different for either side, but are functionaly the same. Unit producers (such as KBot labs, Vehicle Plants, and others) will be listed under each specific side, so that the "unit's produced" can be listed.
Tier 1
Solar Collector
Type: Resource Generator
Built By: Commander, Tier 1 Construction Kbot, Tier 1 Construction Vehicle, Tier 1 Construction Aircraft, Construction Hovercraft, and Construction Seaplane.
Comments: Basic energy collector. Gives 20 Energy per tick. Good to throw up in your basic base before you can build geothermal/nuclear power.
Wind Generator
Type: Resource Generator
Built By: Commander, Tier 1 Construction Kbot, Tier 1 Construction Vehicle, Tier 1 Construction Aircraft, Construction Hovercraft, and Construction Seaplane.
Comments: Another basic energy collector. Best used on windy planets. The amount of energy produced depends on wind speed which varies from planet to planet and from time to time. Wind seems to have no affect on ballistic weapons.
Energy Storage
Type: Resource Storage
Built By: Commander, Tier 1 Construction Kbot, Tier 1 Construction Vehicle, Tier 1 Construction Aircraft, Construction Hovercraft, and Construction Seaplane
Comments: Stores 3000 units of energy. Sometimes used to even out the ups-and-downs in Wind Generator power, or to ensure power is available for heavy artillery.
Metal Storage
Type: Resource Storage
Built By: Commander, Tier 1 Construction Kbot, Tier 1 Construction Vehicle, Tier 1 Construction Aircraft, Construction Hovercraft, and Construction Seaplane
Comments: Sometimes useful, if one reclaims a large amount of wrecks in battle. Otherwise it is rarely needed. Stores 1000 units of metal
Metal Extractor
Type: Resource Generator
Built By: Commander, Tier 1 Construction Kbot, Tier 1 Construction Vehicle, Tier 1 Construction Aircraft, Construction Hovercraft, and Construction Seaplane.
Comments: Extracts the most important resource: metal. Metal is required for all construction, but you knew that already.
Metal Maker
Type: Resource Generator
Built By: Commander, Tier 1 Construction Kbot, Tier 1 Construction Vehicle, Tier 1 Construction Aircraft, Construction Hovercraft, and Construction Seaplane
Comments: Very useful, as it allows for the conversion of the more plentiful resource, energy, to be converted into something more coveted: metal. Converts 60 units of energy into one unit of metal. Very energy-expensive compared to a metal extractor placed on a deposit, so if you can build one of those instead, do.
Light Laser Tower
Type: Land Weapon (Laser Bolt)
Built By: Commander, Tier 1 Construction KBot, Tier 1 Construction Vehicle, Tier 1 Construction Aircraft, Construction
Comments: Does not have enough range to be useful at any time in the later game, and is a tad too expensive to be worth it in the early game. It would be better to crank out mobile units instead. However, they can be used to counter tank rushing in early stages.
Radar Tower
Type: Battlefield Intelligence
Built By: Commander, Tier 1 Construction KBot, Tier 1 Construction Vehicle, Tier 1 Construction Aircraft, Construction Hovercraft and Construction Seaplane
Comments: A good, basic radar unit. Excellent for early base protection. (That is, serving as an early warning unit.) Because it is very cheap and builds quickly, it is easy to set up redundant towers. However, these can be jammed later in the game, and so they will become useless. (if you are playing a competent general who uses jammers frequently)
Sonar Station
Tidal Generator
Type: Resource Generator
Built By: Commander, Construction Ship, Construction Hovercraft, and Construction Seaplane.
Comments: Yet another basic energy generator, which produces 25 energy per tick. It can be placed anywhere in the sea, not just on coastal land. It's often overlooked, even though it produces more power than the basic solar.
Floating Metal maker
Type: Resource Generator
Built By: Commander, Construction Ship, Construction Hovercraft, Construction Seaplane
Comments: More expensive than a land Metal Maker, and it floats. Otherwise, it's just the same.
Underwater Energy Storage
Type: Resource Storage
Built By: Commander, Construction Ship, Construction Hovercraft, Construction Seaplane
Comments: 3000 units of energy storage under the sea. Fairly useful, as the water protects it from most air and ground attacks.
Underwater Metal Storage
Type: Resource Storage
Built By: Commander, Construction Ship, Construction Hovercraft, Construction Seaplane
Comments: Stores 1000 units of metal. Rarely used, but as shipwrecks hold a lot of metal, this can still be useful.
Underwater Metal Extractor
Type: Resource Generator
Built By: Commander, Construction Ship, Construction Hovercraft, Construction Seaplane
Comments: Extracts metal from underwater metal patches. The more metal, the better.
Floating Metal Maker
Torpedo Launcher
Tier 2
Geothermal PowerPlant
Type: Resource Generator
Built By: Tier 1 Construction Kbot, Tier 1 Construction Vehicle, Tier 1 Construction Aircraft, Construction Hovercraft, and Construction Seaplane.
Comments: This power plant can only be placed on top of venting cracks in the ground. They take time to build, but when completed, they will produce 250 energy per tick, which is a great bonus.
Heavy Laser Tower
Note: Arm calls this the "Sentinel", Core calls it a "Gaat Gun"
Type: Land Weapon (Laser Bolt)
Built By: Tier 1 Construction KBot, Tier 1 Construction Vehicle, Tier 1 Construction Aircraft, Construction Hovercraft and Construction Seaplane
Comments: Excellent laser tower, with enough range and firepower to be useful right up until the end of the game. It is a bit expensive, but worth every penny. These HLTs chew up light units, and can dent the armor of more powerful tanks too. It can occasionally hit gunships, though this is rare.
Defender/Pulverizer
Type: Land/Air Weapon (Guided Missile)
Built By: Tier 1 Construction KBot, Tier 1 Construction Vehicle, Tier 1 Construction Aircraft, Construction Hovercraft and Construction Seaplane
Comments: Again, excellent to the endgame. They are cheap and easily built, and groups of them can slow down attacks. Unfortunately, these guided missile towers are too weak to withstand any direct attack, but with their medium range they can help protect each other. Needed to shoot down basic and advanced fighter jets.
Dragon's Teeth
Type: Wall Unit
Built By: Tier 1 Construction KBot, Tier 1 Construction Vehicle, Tier 1 Construction Aircraft, Construction Hovercraft and Construction Seaplane
Comments: A single Dragon's Tooth, designed to delay enemy movement. Dragon's teeth are able to soak up a LOT of enemy fire. Their height keeps them low enough to allow defense turrets to shoot over them, but enemy units have difficulty shooting back. Use them as walls to force the enemy to move where you want them, to slow the enemy down, or to help shield defensive structures from enemy rockets. NOTE: After building, Dragon's Teeth are not counted as "units" in the 200 unit limit. Thus, you can build as many of them as you want.
Guardian/Punisher
Type: Land Weapon (Ballistic Plasma Shell)
Built By: Tier 1 Construction KBot, Tier 1 Construction Vehicle, Tier 1 Construction Aircraft, Construction Hovercraft and Construction Seaplane
Comments: Large plasma ballistic shell launcher. Expensive but worth it for the havoc it can wreak on ground forces. Also useful because it out-ranges the unguided rockets used on the more advanced Merl and Diplomat units. This makes it much easier to dispose of them.
Tier 3
Adv. Radar Tower
Type: Battlefield Intelligence
Built By: Adv. Construction Kbot, Adv. Construction Vehicle and Adv. Construction Airplane
Comments: Powerful radar with a large range. It is still cheap, still builds quickly, and is still susceptible to jamming.
Fusion Reactor
Type: Resource Generator
Built By: Adv. Construction Kbot, Adv. Construction Vehicle and Adv. Construction Airplane
Comments: The big mamma of energy production. Throw up one of these as soon as possible and you'll have an energy boost of +1000 per tick. Built 2 or 3 and your energy needs will be pretty well met. These are necessary to power an advanced base. Excellent for powering (moho) metal makers.
[Long-range artillery will be found in the race-specific sections, due to small differences between both sides' weapons.]
Moho Mine
Type: Resource Generator.
Built by: Adv. construction vehicle, Adv. construction Kbot, Adv. construction Airplane.
Comments: These fairly expensive mines suck metal from the ground at an impressive rate. Once you have the technology, start reclaiming your Metal Extractors and replacing them with Moho Mines to provide a metal boost.
Moho Metal Maker
Type: Resource Maker.
Built By: Adv. construction vehicle, Adv. construction Kbot, Adv. construction Airplane.
Comments: You basically need a fusion plant to power one of these, but they synthesize a massive 20 metal per tick. Use them in combination with Moho Mines to supply a large metal income. Very useful everywhere but the metal worlds, where you should use Moho Mines instead.
Nuclear Missle Launcher
(Heavy Laser Weapons (or the "Blue Laser of Death") will be listed in the "Race Specific" sections, due to the differences between the two weapons, even though they fill the same catagory.)
Anti-Nuclear Missle Launcher
Air Repair Pad
Pop-up Gun
Cloakable Fusion Reactor
(Stun Missles will be listed in the "Race Specific" sections, due to the differences between the two weapons, even though they fill the same catagory.)
Advanced Anti-Aircraft Gun
Fortification Wall
Type: Wall Unit
Built By: Adv. Construction Kbot, Adv. Construction Vehicle and Adv. Construction Airplane
Comments: "Dragons Teeth on steroids." That's what the manual called them, and its a pretty good description. These walls are taller than Dragon's Teeth, and can take much more damage. However, they cannot be used to shield defensive structures because they are too tall. Therefore, they should be used to protect important structures such as Fusion Powerplants, Geothermal Powerplants, Moho Metal Extractors, Moho Metal Makers, and other such critical infrastructure. Simply make a ring of them around the completed building to protect it (somewhat) from bombing runs and artillery fire.
(Moho Metal Makers will be listed in the "Race Specific" sections, due to the differences between the two weapons, even though they fill the same catagory.)
Targeting Facility
(Rapid-Fire Artillery will be listed in the "Race Specific" sections, due to the differences between the two weapons, even though they fill the same catagory.)