This guide will help you earn an S Rank for the mission [Extreme] Sahelanthropus in Metal Gear Solid 5: The Phantom Pain, and includes a list of the mandatory and optional objectives available for this mission. Keep in mind that it is not necessary to complete all the objectives to earn an S Rank. Instead, you just need an accumulated score of 130,000 or more. Completing the mission quickly and earning additional score bonuses will greatly increase your chances of achieving an S Rank for the mission.

Objectives

  • Destroy Sahelanthropus (Mandatory).
  • Destroy the head of Sahelanthropus (Optional).
  • Successfully hit the floating boy with an attack (Optional). 

Walkthrough 

This is a more challenging version of the earlier Sahelanthropus boss fight mission. This time, the enemy will have increased health, and you are more susceptible to damage.

We suggest that you prepare for this mission by equipping the Cluster Guided Missile (CGM) 25 rocket launcher, as this weapon will do a great deal of damage to Sahelanthropus. You can do it with the default launcher, but the CGM 25 will save you a lot of time. Also, bring a grenade launcher for some extra firepower, as well as a tank of your choice to spawn in for some added defense. 

The mission begins by putting you straight into the action with Sahelanthropus. From your starting point, run to the tank that you selected to bring in. Proceed to fire away at the massive mech, aiming once again for its weak spots indicated by the white canisters on its back and abdomen. You will still do damage no matter where you hit him, but the weak spots will deal more damage in comparison.

Once your tank receives too much damage, it’s time to hop out and start using your rocket launcher. Keep in mind that although you will get automatic supply drops when you are out of ammo, you can still call in a resupply manually just as long as the chopper hasn’t been taken down. 

When Sahelanthropus leaps to a cliff in the distance, sprint to safety by taking cover behind any sort of hillside between you and the mech. His laser beams will basically kill you in one hit, so when you see him jump, be ready to move. 

Continue to chip away at its health bar, plowing it with your CGM 25 rockets and snagging resupplies when needed. Once the Sahelanthropus has a small portion of health, the floating boy will appear to hover in front of it, triggering Reflex mode. Quickly switch to an automatic weapon to shoot the floating boy, and then you will have another brief moment to fire a few shots at the Sahelanthropus’ head. 

At this point it should only take a couple more shots to take down the Sahelanthropus and complete the mission. If you followed our guide, you will have successfully secured the final S Rank for the game. 

Return to the Metal Gear Solid 5: Walkthrough and Guide.