Pain Gain

From the upcoming book by John F. Carr, commissioned and published by Pequod Press, 2012.

Set in a post-apocalyptic future, the earth is populated by genetically mutated, ant-like societies of humanoids, with drones, workers, and warriors called "Termites".

They have come out of their "hive" to attack the reminants of mankind-living in tall towers, surrounded by inpenetrable brambles.

Humans can only take on the termites using power suits. Here the final battle takes place, for contol of Earth...