Extermination

Extermination
	; Javi wants you to contact him from there, implying that it's a simple plan.
Mission in Just Cause 4
Type	DLC
To unlock	Complete all infestation missions.
Starting location	One of the small islands near Isla de los Annilos.
Reward	Demon Egg is unlocked at the supply drop.

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Bolo finds this pleasing, but she would like more.

Extermination is a mission in Just Cause 4. It's the last mission of the Los Demonios DLC.

Introduction[]

Quote from the map marker: "All of the mainland infestations have been removed. Rendezvous with Javi to learn how to destroy Huchasunqu."

Bring whatever weapons you are most used to using. You'll need more ammunition than you can carry. If possible, get the weaponized Wingsuit DLC. That can make this mission much easier. Don't try to have 2 heavy weapons. It's more efficient to always keep one lighter weapon, such as the Demon Crossbow to fight off the demons (flying insects).

Walkthrough[]

Spoiler warning: Significant plot details follow.

The mission resets time to night. Rico meets Javi on one of the small islands south-west of Isla De Los Annilos. They notice that the sphere has become much bigger since last time and is now covering the whole island.

Javi explains that the main tendrils have gone through the big gate-like things that Rico used to rotate the rings. The plan is to first go to the "observation post" and trigger the rings system from there, in order to unlock the main rings.

After the cut-scene, there are 2 weapon crates near you on the left. Get what you think you might need and notice that there's a parked helicopter near you as well.

Get to the island and to the observation post[]

There's a Emsavion Utility Heli near you, but the player may use any vehicle.

On the way to the main island, you might notice several Black Hand vehicles surrounding/attacking the sphere. The Black Hand have 3 to 4 jets flying into or around the sphere as well as several helicopters flying into or around the sphere. Their fleet has 2 Spearhead Transport ships. Should any of these vehicles enter the sphere, they will all explode once entering, but the vehicle carcasses should still reach the island. The beach already has a number of Black Hand soldiers fighting the demons (flying insects). The insects, thanks to their ability to possess the dead bodies that they hold, are now often times armed with the RG-PBA 9 Railgun. Ignore this minor battle and get to the marked area.

It's advised to travel by either parachute, or wingsuit. If any insect is glowing at an unusual tone, shoot at it immediately! That means that they're about to throw themselves at Rico in a rather explosive manner.

Once arriving at the observation post, there's a small swarm of flying insects near it. Shoot them down, or grapple your way past them and trigger the circular model of the main rings on the floor. Triggering this model will make its parts rotate and rise a little. The model can be triggered once standing near it. Rico kicks a part of it.

Rotate the marked ring[]

Get to the marked arch and set some rocket boosters on it with your grappler.

The ring doesn't have to move much at all. The tendril will retract very soon.

Soon the Huchasunqu will speak a little, though nothing meaningful. Just "Aaaaahhhh!" and "Die!" and the like. Rico calls Javi and immediately speculates that he knows what has become of Simón Valencia and says that it would be better to be dead. Javi agrees and advises to destroy whatever Simón has become. Rico tells the Huchasunqu that he intends to pull it apart and shoot it in the guts.

Destroy the Huchasunqu[]

This Huchasunqu is similar to the usual "infestation sources", but it has large horns all over it.

Try to avoid the insects and then defeat it the same way as a normal source.

Destroy the infested weapons[]

After being blown up once, the Huchasunqu is still alive and sends up 8 large tendrils with captured tanks and other weaponized vehicles. They are arranged in a circle around the source.

Use whatever heavy weapon you have to blow some up. Stay away from the source for now. These weapons have overlapping fields of fire, so they can easily cover each-other.

When you run out of ammunition, notice that there are Black Hand soldiers fighting the insects at the emptier areas on 4 sides.

Do not shoot at the Black Hand here. They are on your side, as long as you don't get heat.

Look around them and find a set of 2 parked Cavalry Armored Trucks. There's a weapon crate between these trucks. There are identical sets of 2 trucks parked at multiple locations where the Black Hand are fighting and they all have a weapon crate between them. Due to its limited range and long recharge time, the RG-PBA 9 Railgun is not a good choice. If available, it's much more advised to try out the AT3-X RPG, or PBX Mine Launcher 2A7.

If available, it's also possible to attack them with the weapons on the weaponized wingsuit, but these do less damage then proper weapons, because most of these small rockets are likely to miss and this kind of attack maneuvers put Rico dangerously close to the enemy.

Destroy the Huchasunqu (again)[]

This is the most difficult part of the mission.

The Huchasunqu will first pop up another "source"-like head and say "Kiiilll meeee!" This head also has a tendril-like neck to swing around on. The head opens every once in a while and exposes an eyeball in its center. The eyeball and its surrounding glowing area are the targets to shoot everything you got at.

What makes this difficult is that this Huchasunqu will bring up about 15-20 tendrils with captured armed vehicles. Some of these are located further away along the outer edge of the rings.

Remember to get more heavy weapons from the Black Hand weapon crates.

Do not fight the tendrils with captured vehicles at this point. Stay away from them. The problem is that once being destroyed, it takes about 5 seconds for another one to pop out of the ground at the same spot.

Instead, try to stay in the air and make fast attacks against the source itself.

If you have the weaponized and rocket-powered wingsuit, put it to some use by getting to some altitude before approaching from above. This is the safest way to pass the captured vehicles. If you don't have it, just try to grapple yourself forward as fast as possible. The idea is to fire your heaviest weapon(s) at the source at close range.

With most weapons, it takes multiple such attacks before the enemy is destroyed as most heavy weapons fire slowly and the boss reels after a certain amount of damage is done.

For this reason, a great weapon to use for this is the PBX Mine Launcher 2A7 (which can be found in the crates). With the right timing and a bit of luck, it is possible to quickly land all 8 mines in the magazine within a single approach, instantly killing the boss upon detonation (Pay attention though that the mines need to be detonated while the eye is still exposed, so before leaving the bosses inner sphere).

When the Huchasunqu's health enters red, Rico will remark: "Time to die, you disgusting piece of shit."

Final cut-scene[]

Once the Huchasunqu is destroyed Rico and Javi stand at the middle platform and stare at the monsters remains.

The remains are a pile of pink goo. The goo has a deformed face of Simón Valencia, complete with his glasses and necklace. The abomination then says something like "I guess I was the idiot after all." in reference to Simón's previous discussion with Rico.

Javi then asks Rico what they'll do next. Rico says to never speak of this again and Javi agrees.

Trivia[]

It is relatively speaking, but this is one of the most difficult shooting missions in Just Cause 4, and quite arguably one of the most difficult missions in the entire Just Cause game series.
- While it is possible to get through the mission without dying once, pulling this off is nigh impossible, with maneuverability and combat prowess required to its absolute maximum.
There is a tune heard when the Huchusunqu enters a critical health phase that is not heard anywhere else.