These are the units you use to create other more powerful units. They have some characteristics of their own which are described below.

These have a weak assault rifle attack which is almost useless.

Can produce suppressing fire on enemy units this has little effect.

Have useful healing powers to return other units to full strength. It is worth keeping a squad of about 30 of these during later levels to heal other units.

Buildings Needed: Level 1: Laser Laboratory
Units: 3 Officers

Useful all round unit. Can destroy enemy units, brigadiers, buildmasters and scourge. Can also slow building by destroying energy between the buildmaster and building.

Buildings Needed: Level 1: Antigrav Laboratory
Units: 5 Soliders, 4 Officers

A powerful flying unit, can attack scourge and opposition units. Can fly over water without being destroyed.

Buildings Needed: Level 1: Antigrav Laboratory, Level 2: Laser Laboratory
Units: 4 Officers

Similar to the sniper but flying and with greater defences. If you have the right buildings it is worth converting your snipers to these.

Buildings Needed: Level 3: Laser Laboratory
Units: 1 Solider, 12 Officers, 7 technicians

Surprisingly powerful unit, these can destroy buildings in a matter of seconds with their powerful lasers.

Buildings Needed: Level 1: Subterra Laboratory
Units: 2 Officers, 2 technicians

Can damage ground but cannot be directed to attack specific buildings. Is inefficient against buildings.

Buildings Needed: Level 1: Subterra Laboratory, Level 2: Laser Laboratory
Units: 7 Officers, 3 technicians

Useful underground units, can destroy to smaller buildings but will take some time to destroy other buildings. Good for stopping an enemy frame charging by destroying the ground beneath it.

Buildings Needed: Level 1: Rocket Laboratory
Units: 3 Soliders

Can destroy air-born attackers.

Buildings Needed: Level 2: Rocket Laboratory, Level 2: Laser Laboratory
Units: 6 Soliders, 3 technicians

Can attack almost anything. Quick way to destroy enemy units and can attack buildings.

Buildings Needed: Level 1: Antigravity Laboratory, Level 2: Rocket Laboratory
Units: 6 Soliders, 4 Officers

Flying version of the R-Projector with slightly weaker attack.

Buildings Needed: Level 2: Subterra Laboratory, Level 2: Laser Laboratory, Level 3: Rocket Laboratory
Units: 7 Soliders, 6 Officers, 7 technicians

Very unusual unit, produces underground target seeking missiles. These will seek out their target and produce a large hole in the ground beneath it. Energy cores will then be instantly destroyed while most other buildings will be severely damaged. Along with a team of healing technicians these can be decisive in many levels.

Buildings Needed: Level 1: Bomb Laboratory
Units: 4 technicians

Reasonable attack against buildings and the only way to destroy buildings at the start of a level.

Buildings Needed: Level 2: Bomb Laboratory, Level 2: Rocket Laboratory
Units: 2 Soliders, 8 technicians

Powerful bombing attack, a group of around five of these can do a surprising amount of damage.

Buildings Needed: Level 2: Bomb Laboratory, Level 2: Antigravity Laboratory
Units: 2 Soliders, 6 Officers, 12 technicians

Also has a powerful attack but must be above the place it is attacking. This makes it more vulnerable to attack than the other bombing units but enables it to attack units out of reach of the other bombers.

Buildings Needed: Level 1: Empire Laboratory
Units: 12 technicians

These units are very powerful against outlying energy cores. They will take all the enemies energy and prevent them attacking you.

Buildings Needed: Level 2: Empire Laboratory, Level 2: Laser Laboratory
Units: 9 Soliders, 18 technicians

These make your other units near it invisible and can take a large amount of damage so your other squads can attack without losing any health.

Buildings Needed: Level 2: Empire Laboratory, Level 2: Antigravity Laboratory
Units: 12 Officers, 15 technicians

Will convert near by enemy units into basic units.

Buildings Needed: Level 2: Subterra Laboratory, Level 3: Empire Laboratory
Units: 3 Soliders, 21 Officers, 39 technicians

Very powerful underground unit, destroys a large line of land and is destroyed after its attack. If aimed well it can devastate the oppositions territory.

Buildings Needed: Level 1: Exodus Laboratory
Units: 12 technicians

Powerful unit which will crack the ground near where it is targeted doing a lot of damage to not only the unit it is aimed at but also those near by. It must charge between attacks making it vulnerable.

Buildings Needed: Level 1: Bomb Laboratory, Level 2: Exodus Laboratory
Units: 6 Soliders, 21 technicians

Creates a small tornado which will attack units and buildings. Must also be charged.

Buildings Needed: Level 2: Exodus Laboratory, Level 2: Antigrav Laboratory, Level 3: Laser Laboratory
Units: 21 Officers, 12 technicians

Flying unit which boils the ground underneath it. Powerful but unnecessary.

Buildings Needed: Level 2: Bomb Laboratory, Level 3: Exodus Laboratory
Units: 3 Soliders, 18 Officers, 39 technicians

Throws scum at enemy buildings, this will cause damage to them. This unit can take a lot of damage before being destroyed so is very useful.

Buildings Needed: Level 1: Harkbackhood Laboratory
Units: 12 technicians

Relatively weak attack against the enemies base so is unlikely to destroy buildings.

Buildings Needed: Level 1: Antigrav Laboratory, Level 2: Harkbackhood Laboratory
Units: 9 Officers, 15 technicians

More powerful than the spider but still not that effective.

Buildings Needed: Level 2: Antigrav Laboratory, Level 2: Harkbackhood Laboratory
Units: 12 Officers, 15 technicians

These units will head for the building you direct them to and overwhelm it, swiftly destroying it.

Buildings Needed: Level 2: Antigrav Laboratory, Level 3: Harkbackhood Laboratory
Units: 3 Soliders, 21 Officers, 39 technicians

Emits large dragon scourge which can destroy buildings instantly and are very hard to kill. A few of these will quickly destroy the enemy.