This page details how to complete the Nexus quest in the Halo Infinite campaign. Includes where to find the collectibles in the form of two audio logs, how to defeat the two Hunters, how to defeat the sentinels, and where to find the power seeds to activate the crucibles. This quest begins immediately after The Sequence.
How to Complete Nexus
Locate the Nexus: Fight Through the Rooms
This is a fairly simple quest which requires you to locate the Nexus at the heart of the Command Spire. Along the way you’ll encounter different types of enemies, but mostly the usual mix of Brutes, Jackals, and Grunts. There are more Elite Brutes than usual down here, so you’ll want to make sure that you have powerful enough weapons equipped to deal with them quickly as you make your way through the rooms. The first room contains mostly regular units with only a handful of elites, and there’s plenty of space to take cover and deal with them methodically. Things get a little more chaotic in the next room, where you’ll encounter heavily armored Elite Brutes and fast-moving Jackals. There are plenty of Pulse Carbines to be found lying around or on weapon racks, a useful gun to kill most enemy types and destroy Jackals with shields quickly. If you aim for the head with the Pulse Carbine, most of the elites will die in 4-6 hits. Be sure to make use of the room features to take cover when necessary, and use grenades to damage multiple enemies at once when they’re positioned close together.
As you move through the rooms you’ll begin to encounter more Skimmers. These are flying enemies which can inflict a lot of damage, but they’re also incredibly weak. You can kill most Skimmers in just one or two hits with any weapon, so you might as well focus on killing these as soon as they appear to avoid being caught off guard from the air. Some of the Elite Brutes that you encounter in each room will be carrying weapons such as the Ravager or Sentinel Beam. You should pick these up as soon as you can, since they’re extremely effective against heavily armored opponents. You can also make use of blast coils in the rooms by throwing them at heavily armored opponents, or shooting them when the enemies are within range of the explosion. If you happen to pick up an Energy Sword from one of the Elite Brutes, this can be used to kill most enemies quickly if you use Grappleshot to reach them.
How to Defeat the Hunters
After numerous rooms filled with various types of Brutes, Jackals, Grunts, and Skimmers, you’ll eventually reach a room with just two Hunters. This is a relatively small room, so you won’t have much space to run away from them in a pinch. Instead, you’ll need to focus on using the features of the room to take cover, and make use of the powerful Ravager or Sentinel Beam to bring them down quickly. You’ll find both of these weapons on the weapon racks within the room, but you may need to expose yourself to Hunter fire for a few brief second as you reach them if you don’t already have one. A good way of dealing with Hunter fire is by moving around pillars or other structures, moving in and out of line of sight as you shoot, as shown below. If you do this and combine the tactic with grenades, you should bring the Hunters down relatively quickly without coming into harms way too much. Although the Gravity Hammer is extremely effective against Hunters, the same can’t be said for the Energy Sword, so we don’t recommend that you attempt to use the latter in melee combat against a Hunter. If you’re running out of ammunition with a powerful weapon that you’re relying on, you can refill it from the nearby ammo crates in the room.
Use Power Seeds to Activate the Crucibles
Once you’ve defeated the two hunters, you’ll need to drop down a hole until you reach a large cavernous room. Here you’ll find a gondola which you’ll need to activate, at which point numerous Sentinels will descend upon you. The most effective way to destroy these is by using the Sentinel Beam, at least two of which you’ll find on the nearby weapon racks. The Sentinels drop ammunition for the weapon, so you shouldn’t run out so long as you keep killing them as they fly over the gondola. Once you’re on the other side of the chasm, you’ll reach a point where it seems like there’s no way forward. Just wait a few seconds for an energy bridge to be activated, then walk on through. At the other end of the bridge you’ll find the Nexus, and a cutscene will begin.
At the end of the cutscene you’ll be tasked with acquiring three power seeds for the crucibles. you can use AI Scan to highlight the location of the crucibles and power seeds. Interact with the terminal first, then go up the ramps opposite each crucible to find a power seed behind each door. There are Sentinels behind each of the doors, but they’re easily dealt with, especially with the Sentinel Beam. Two of the power seeds are easy to reach after defeating the sentinel beams, but you’ll need to use the Grappleshot to get over a chasm for one, since the bridge it was previously powering will disappear when you take it.
Nexus Collectibles - UNSC Audio Logs
There are two UNSC audio logs associated with the Nexus mission. One of these is acquired automatically as you explore the Nexus, and the other must be found manually. See the gif below for the location of the latter.
Once you’ve placed all three power seeds in each of the crucibles, all you need to do is interact with the terminal to trigger a cutscene. The quest will end after you’ve ascended up the gravity lift. You’ll unlock the What Will It Take? achievement upon completion of the quest.