This is a very difficult level as the enemy continue to try and expand and attack you until you crush them. With this in mind you need good defences while being constantly on the attack. The first aim is to own all of your half of the mountain range, this is to give you space and prevents them building an empire lab as they will only build it on your side of the mountain range. They have two transmitters over the mountain range you can either destroy these or the cores on the other side. I aimed for the cores on my side as these are easier to attack. Then expand your cores and defences across your side of the mountains. Upgrade your bomb and rocket labs so you can build howitzers and rocket turrets. A large number of howitzers will pummel their buildings and use up their energy as they try to rebuild them. But they also have howitzers to attack you so to prevent this use extirpators with technicians as healers to destroy their energy cores. As soon you feel ready cross the mountains near your frame. Build at least two transmitters over and a very large number of rocket and laser turrets to defend the new cores. Build howitzers to attack their base. Expand on this side of the mountain adding more howitzers. Eventually they will destroy the enemies base.

Start with four brigadiers and flatten around your frame. Then start building labs to get more powerful units. Start with a laser lab and build laser turrets as they send snipers against you as soon as their squad is built up. Add more defences but not too many are needed as they only send gyroids and harkback units against you which don't do much damage. I then got three extirpators, four gyroids and forty technicians and headed to their base. I attacked their energy cores followed by the ground under their frame. You should soon defeat them. Once the enemy has been destroyed flatten the land up to the centre to reveal the portal and then teleport through.

First expand your cores all around your frame as your shield is the best defence against the scourge. There is one scourge nest very near your base. Flatten it and place cores all over it, this will prevent the scourge emerging. Then flatten towards the portal, before you place the bomb make sure your frame is near the other portal. Place the bomb and then teleport through the portal.

The first aim is to destroy the power to the bomb. There is no point not attacking the enemy as it will only enable them to become stronger. Attack them as fast as possible, extirpators are useful for this destroying the energy cores around the bomb. I then expanded my base towards the enemy and used howitzers to help destroy them.

First they will send wargon tanks against you, some rocket and laser turrets will stop them doing much damage. If you have no underground defences they will also send underground units against you. Then expand towards their base and take out the cores near the portal. Then force the frame to lift off the ground, connect your cores to the portal and move your frame through it.

Have good defences against their scum splitter attacks and expand towards them. At the same time I attacked their base with extirpators and technicians as healers. At one point they will send leamos against you. Watch out for this dangerous attack. Keep expanding your base and make sure your cores are very close to their frame before your final attack as you risk destroying it and failing the level.

First build up your base and add laser turrets as they will send snipers against you. Then add rocket turrets to stop the scum splitters they send against you. While they are doing this build up your army. I used around 20 snipers, four or five extirpators and 30 nanotechnicians and sent them to destroy enemy energy cores. Make sure you destroy the core connected the portal so they stop building it. Then destroy their defences. Continue to destroy them but leave one core as if you don't there is a risk the frame will be destroyed ending the level. Once they are weak begin to flatten towards the core locations with four brigadiers. Start to build a line of cores with a laser and rocket turret to defend each core. Once you build on the first marked position prepare for the attack of the scourge. With enough rocket turrets it should be quickly destroyed so build a large number of rocket and laser turrets near there. Flatten to the other positions and build cores across, keep the good defences as the scourge will continue to attack. Don't forget to keep and eye on your opposition as they will continue trying to build a portal. Once all the cores are built the location of the alpha portal is shown. Build it to end the level.

Use your exodus units for this level. First flatten enough to build a core and laser lab so you can defend against the snipers who arrive as soon as you start the level. Then build an officer plant and more laser turrets. You will need a subterra lab so you can defend against underground units which will be sent. Then upgrade your exodus lab to level two and a bomb lab to create a scum twister.