At last map good idea is to move base on the highest land (next to drone tech) and build one blaster and one collector. Next start building collectors to get more energy and set 3 blaster in the middle, on left and right. With this defence you can start building on lower levels and gain enough energy to attack.
On the select campaign mission you will find marked button "Challenge levels" - click it and select Kongregate Challenge. Then beat it.
Sorry for my english...
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