Here's a quick list of new available units and main strategies. To see the pictures and such you should download the new level 3 tech pack. It really is worth it. All units were designed to look like close to the level 2 versions, if existing. So take a look:
Core Extreme Vehicle Plant builds the new level 3 vehicles. It's expensive and takes some time to build but is worth it. The new techs need resources but they have the power to pay back.
Core Extreme Construction Vehicle builds the new level 3 ( 4 actually?) buildings that are much more powerful and productive than the lower level structures.
Core Alligator should be pretty familiar to those that have seen our units before. The Alligator is an amphibious tank that carries a heavy laser. Short range but high fire rate make this an effective unit, but it's still quite poorly armored.
Core Victory is the next in the series of Very heavy battle tanks. This thing has a weapon that is basically three goliath weapons in one, because the reloadtime is only 1/3 of original goliath weapon. Range and damage have also been increased a little. The unit itself has over 20% more than in Goliath so it should be able to keep fighting longer even alone.
Core Cloaker is an advanced radar jammer vehicle, which can jam almost twice the area of a Deleter. Otherwise it's pretty close to its predecessor.
Core Arty fires long distances with quite slow fire rate. That means it's an artillery unit moving the same paths as the level 2 Pillager but Arty is not just long ranged, it's also effective.
Core Railer is armed with a new weapon that is basically a light D-gun like weapon. High reloadtime and slowness make it still a fair weapon. The Railer uses parallel dimensions to gain twice the damage it normally would inflict. A normal Railgun wasn't enough good to Core Commander so he ordered to increase the damage in a way or another. Railgun is a line of sight weapon which, however, shouldn't hit ground until the parallel dimension support runs out. The shot itself goes through enemy units until it runs out in power or range. It can't go through a Krogoth but the damage is still high above any other weapon in the game. The vehicle itself has only medium armor.
Core Lens sees far as it has longer radar than on any other Core's mobile unit.
Core Gruesome is simply a longer range version of Diplomat with some more armour too.
Core Extreme Radar Station provides you with almost limitless radar vision, except on bigger maps.
Core Particle Accelerator Power Plant produces 4000 energy. It uses the same technology that is used on the Core's UFOs, although in a lot bigger form.
Core Core Mine hauls the metal deeper from the planet's core. Use it when Moho isn't enough.
Core Blast fires a powerful nuclear shell longer than the Intimidator. The reloadtime is long and the energy cost per shot is 5000 so you might need a storage before firing.
Core Remover is the weapon that should be feared by both sides. The name says it all. This weapon is ten times as powerful as a nuke with ten times the range which means basically that if you ever get it done, and fired, the enemy is no more. But there is a danger that if the building is destroyed the nuke inside explodes. It's not as effective as when fired but the wideness and damage is still 4/5 of the full power. Build this only if you are sure it won't be a problem to yourself.
Core Eliminator is a pop-up anti-air missile launcher which fires the fastest missiles in the game. They can even hit on faster fighters. It naturally becomes more inaccurate when enemy is further away but if you really need to get planes down then forget the old pulverizers and use these. Remember: Only fires at air units.
And never let the enemy destroy any of these structures, the units like Molecule power plant and Big Bang make a Commander size explosion when destroyed.