Metal Gear Solid V: Ground Zeroes

After finishing the main mission you can play on of the five side missions. Just complete one and you are done with this achievement. I found "Intel Operative Rescue" the easist one.

Once you have finished 'Ground Zeroes', the other missions are opened up - completing any of these will pop this achievement.

Below are S-rank guides for all of the missions.

Ground Zeroes | S Rank - Hard

TIME 31:02.310 | 32690
ENEMY COMBAT ALERTS 0 | 5250
KILLS 0 | 3500
PRISONERS RESCUED 6 | 21000
HELICOPTERS LOST 0 | 0
RETRIES 0 | 5250
NO REFLEX | 5250
-------------------------------------------------------
SCORE | 72940



Eliminate the Renegade Threat - S Rank - Hard

TIME 2:52.705 | 34436
ENEMY COMBAT ALERTS 0 | 7500
KILLS 2 | -400
PRISONERS RESCUED 0 | 0
HELICOPTERS LOST 0 | 0
RETRIES 0 | 3750
NO REFLEX | 7500
BOTH TARGETS RECOVERED | 0
-------------------------------------------------------
SCORE | 52786



Destroy the Anti-Air Emplacements - S Rank - Hard

TIME 4:10.667 | 33417
ENEMY COMBAT ALERTS 0 | 8250
KILLS 0 | 2750
PRISONERS RESCUED 0 | 0
HELICOPTERS LOST 0 | 0
RETRIES 0 | 4125
NO REFLEX | 8250
MOTHERBASE AGENTS RECOVERED | 0
-------------------------------------------------------
SCORE | 56792



Classified Intel Acquisition - S Rank - Hard

TIME 4:59.983 | 38515
ENEMY COMBAT ALERTS 0 | 6000
KILLS 0 | 2000
PRISONERS RESCUED 0 | 0
HELICOPTERS LOST 0 | 0
RETRIES 0 | 3000
NO REFLEX | 6000
CLASSIFIED INTEL RECOVERED | 0
-------------------------------------------------------
SCORE | 55515



Intel Operative Rescue - S Rank - Hard

TIME 10:57.173 | 23996
ENEMY COMBAT ALERTS --- | ---
KILLS 0 | 250
PRISONERS RESCUED --- | ---
HELICOPTERS LOST --- | ---
RETRIES 0 | 375
NO REFLEX | ---
-------------------------------------------------------
SCORE | 24621



Jamais Vu - S Rank - Hard

TIME 8:32.728 | 21889
ENEMY COMBAT ALERTS 0 | 1200
KILLS 0 | 1200
PRISONERS RESCUED --- | ---
HELICOPTERS LOST --- | ---
RETRIES 0 | 400
NO REFLEX | 1200
------------------------------
SCORE | 25889