Map requires bit of RNG for S rank clear as one of helipad can be impossible to capture. This map is also first map that requires 5 echelons if you do not have parachute fairy. [I hope by the time you are doing chapter 10 S-rank, you have 5th echelon] You can also clear the map early just like Rank maps if you rescued 4 hostages. This of course disqualifies you for S-rank.

If you have parachute fairy, stepping on Radar node at the bottom of the map turns all Black Goliaths to hostage unit, making this map whole lot easier to finish.