Flooded Forest is a remote place in the vast jungle. Some of the base were actually underwater.
Flooded Forest is an extremely humid and cold area, consisting of 85% humidity. The base are covered in a heavily shaded canopy of the trees so it's almost invisible by the eye in the sky.
Trees: Some of the trees were very huge that it can support many nests sitting on branches.
Animals: Some animals are genetically engineered to serve as living tanks such as Elephants. Elephants can now fire water out of their snout. The water velocity that they projected is so powerful that the pressurized water can cut through thin layers of steel plates.