Starfield: How to Unlock Hostile Intelligence – UC Vanguard Guide

Starfield Hostile Intelligence – What It Is

Hostile Intelligence in Starfield is not a perk, trait, or ship module. It is the penultimate story quest in the UC Vanguard faction line, focused on understanding how Terrormorphs spread. The entire mission is a contained operation in and around the ruined city of Londinion on Toliman II, where you escort a science team to collect three key biological samples.

This quest is where the Vanguard storyline shifts from generic alien extermination into concrete bio‑terror and xeno‑ecology. Mechanically, it is a long, combat‑heavy dungeon run with scripted set pieces: Aceles containment, Heatleech evolution, and a roaming Terrormorph boss at the spaceport.

If you are seeing references to “Starfield Hostile Intelligence – What It Is & How to Get It,” all of that is pointing to this specific UC Vanguard mission. There is no separate item or system called Hostile Intelligence.

How to Unlock Hostile Intelligence

Hostile Intelligence does not appear on the map or in your log until you are deep into the UC Vanguard quest chain. It is automatically granted; you cannot pick it up early or miss it if you follow the faction story.

To trigger Hostile Intelligence you must:

• Join the UC Vanguard in New Atlantis (via the MAST building recruitment desk).
• Progress through the faction quests until you complete “War Relics”.
• After “War Relics,” you are directed to speak with Hadrian at the Red Devils HQ on Niira (Narion system).
• Concluding that conversation and the short setup sequence will automatically start Hostile Intelligence.

The journal entry will flag the objective to travel with Hadrian, Percival, Kaiser, and the UC team to Forward Base 441 on Toliman II. From this point, the entire quest flow is linear.

Recommended Level, Gear, and Skills

Hostile Intelligence is tuned as a late‑line Vanguard mission. While the game does not hard‑gate you, a practical baseline is:

• Recommended level: 25-30 minimum, 30+ preferred if you are not min-maxed.
• Main damage type: Ballistics or Laser with good range; Terrormorphs move quickly and have large health pools.
• Skills that help:
  • Ballistics / Lasers / Rifle Certification – efficient DPS.
  • Boost Pack Training – vertical movement against Terrormorph lunges.
  • Pain Tolerance / Wellness – survivability against burst attacks.
  • Medicine – better healing from med packs.

Forward Base 441 is deliberately stocked as a staging area. Before you push into Londinion, make sure you exploit that:

• Access the armory and pick up the UC Antixeno spacesuit, helmet, and boost pack (these pieces scale with level). They provide strong protection and are tailored for xeno combat.
• Grab the X‑989 Microgun and other weapons from lockers and crates if you want a high‑rate‑of‑fire option against swarms.
• Use the on‑site gun range as a free ammo source.
• Optionally, buy extra meds and ammo from Azevedo if you are low; this is effectively your last safe shop before the city.

Entering Londinion under‑geared is one of the easiest ways to stall on this mission. The game hands you anti‑xeno tools for a reason; there is no benefit to ignoring them.

Step 1: Forward Base 441 and Entering Londinion

Once Hostile Intelligence starts, your first objective is to reach Forward Base 441 on Toliman II.

• Land at the marked location and speak with Percival and Hadrian.
• Follow the briefing inside the command area; Kaiser will be involved in powering systems and handling analysis.
• Loot the base methodically: armory, gun range, side rooms. This is all “free” gear.
• When prompted, move with the squad to the transport that shuttles you to Londinion.

Londinion itself is a controlled combat zone. Enemies are primarily:

• Terrormorphs – the main xeno threat.
• Thralls – humanoids under Terrormorph influence; lighter but numerous.
• Heatleeches – weak individually, but relevant for the second sample.

Move with the UC team through the initial streets and into the facility complex. Kaiser will interface with local systems to restore power and open key doors, including the path to the first sample.

Step 2: First Sample – Aceles Sample Alpha

The first objective in Londinion is securing Aceles Sample Alpha from a containment area. This is where the game properly frames the Aceles as natural Terrormorph predators.

The approximate flow:

• Push through the initial building interiors with the squad, clearing Terrormorph thralls and occasional xenos.
• Reach the containment facility where the Aceles are observed behind glass or in holding areas.
• Defend the team while Kaiser powers the local controls and opens inner doors.
• Once the area is secure, follow the objective marker into a back lab/storage area to retrieve Aceles Sample Alpha from a container or sample rack.

Hostile Intelligence is scripted to keep you mostly in a forward push, but two practical points reduce friction here:

• Stay ahead of the NPC line but not too far. If you over‑extend, you can trigger extra Terrormorphs without your squad’s fire support.
• Use the environment – most rooms have partial cover that blocks line‑of‑sight for ranged Terrormorph spit and gives you windows to heal.

After you collect Sample Alpha, there will usually be a brief dialogue and regroup with Percival and Hadrian. The quest log then updates with the directive to investigate the Steam Tunnels for the second sample.

Step 3: Second Sample – Steam Tunnels and Lazarus Plant

The second Hostile Intelligence sample comes from a sequence designed to show how Terrormorphs can evolve from Heatleeches. This is mechanically straightforward but easy to rush and miss visual cues.

Route through the tunnels:

• Follow the waypoint down into the Steam Tunnels underneath Londinion.
• Expect Heatleeches clinging to walls, ceilings, and pipes. Clear them as you advance; they are weak but can chip you down.
• Progress until you reach a room with a large observation window looking into a sealed chamber.
• Watch the scripted event where a Heatleech interacts with a Lazarus Plant and transforms into a Terrormorph.
• Shortly after, you will get an objective to track and kill this evolved Terrormorph to obtain the second sample.

The important narrative discovery here is that Lazarus Plants act as a catalyst, enabling Heatleeches to evolve into Terrormorphs. That ties into later discussions with Hadrian and Percival about how the infestation might have spread via humans unknowingly transporting Heatleeches and these plants.

In practical combat terms:

• The tunnel fight spaces are narrow. Automatic weapons or shotguns work well; explosive weapons can be risky because of splash in close quarters.
• Use your boost pack to reposition when the Terrormorph charges; vertical maneuvers reduce the chance of being pinned in a corner.
• Keep an eye on environmental hazards like steam vents, but these are more ambiance than a significant threat.

Once the transformed Terrormorph is dead, loot it for the second biological sample. The quest marker will confirm completion, and your journal will update to investigate the Londinion spaceport for a third sample that appears to be moving.

Step 4: Third Sample – Mobile Terrormorph at the Londinion Spaceport

The third Hostile Intelligence objective is essentially a roaming boss fight in a semi‑open arena: the ruined spaceport. The “sample” here is a live Terrormorph whose movements you track and then neutralize.

Approach to the spaceport:

• Follow the main path out of the tunnels, back into the open city, and toward the spaceport waypoint.
• Clear scattered enemies along the way; do not sprint straight through, or you can drag adds into the boss arena.
• Once inside the spaceport perimeter, use your scanner or pay attention to UI markers indicating the mobile target.

When you finally corner the Terrormorph, treat it as a high‑priority, high‑HP elite:

• Stay mobile. The spacing here is more open, so strafe, boost, and use verticality.
• Target weak points. Aim for the head and glowing back nodes when exposed; this accelerates stagger and kill time.
• Manage adds. Smaller enemies can join mid‑fight; eliminate them quickly to avoid chip damage while you focus on the main target.
• Use your squad. Position yourself so the NPC team has clear lines of fire; do not hide them behind multiple walls while you solo the boss.

Once the Terrormorph is down, loot the body immediately for the required sample. Staying too long in the arena after the kill can spawn or draw in more hostiles, adding unnecessary risk.

With all three samples secured, your objective shifts back to regrouping and extraction.

Step 5: Extraction, Debrief, and Rewards

After the spaceport fight, follow the waypoints to rendezvous with the team and return to Forward Base 441. The combat intensity drops once you leave the spaceport; the remaining sequence is primarily dialogue and analysis.

• Return to the base and speak with Percival and Hadrian.
• Participate in the discussion about the Lazarus Plant–Heatleech–Terrormorph chain and the implications for human colonization.
• Confirm the mission wrap‑up in dialogue; your quest log will mark Hostile Intelligence as complete.
• The final UC Vanguard mission, A Legacy Forged, then unlocks automatically.

The usual rewards for completing Hostile Intelligence are:

• Experience: approximately 350 XP.
• Credits: around 12,000 credits, slightly scaled by level.
• Equipment:
  • X‑989 Microgun (if you did not already pick it up in the armory).
  • UC Antixeno spacesuit set (suit, helmet, boost pack) from Forward Base 441, which you retain.
  • Additional unique or high‑tier items such as the Shattered Shock weapon from certain containers or armory caches if you looted thoroughly.

Even if the raw XP and credits are not critical at this stage of a run, the anti‑xeno gear remains viable for the rest of the Vanguard arc and any Terrormorph encounters elsewhere.

Practical Tips and Common Pitfalls in Hostile Intelligence

Although Hostile Intelligence is linear, several recurring issues tend to slow players down or cause unnecessary failures. Addressing them directly makes the Londinion push significantly smoother.

• Do not skip Forward Base 441 prep.
  Rushing through the briefing and ignoring the armory is the fastest way to enter Londinion under‑armored and under‑supplied. Treat the base as a free upgrade before a raid.
• Stay within support range of your squad.
  Pushing multiple rooms ahead can cause staggered spawns where you fight Terrormorphs without UC backup. Keeping a moderate lead keeps aggro distributed and damage shared.
• Control sightlines in tight interiors.
  In the containment facility and tunnels, pre‑aim around corners and clear thralls before focusing on larger Terrormorphs. Letting small enemies stack behind you is a common source of unexpected deaths.
• Watch the Lazarus Plant sequence instead of sprinting past it.
  The Steam Tunnels cutscene is more than flavor; it explains the core Terrormorph propagation mechanic. Missing it can leave later dialogue feeling disconnected.
• At the spaceport, clear your approach.
  The roaming Terrormorph is demanding enough on its own. Cleaning out nearby lesser enemies on the way in greatly simplifies the boss arena; otherwise you are effectively in a multi‑front fight.
• Use med packs early instead of waiting for low health.
  Terrormorph burst damage can remove a large portion of your HP in a single sequence. Popping a med pack at 60–70% health is safer than gambling on a last‑second heal.
• Manage ammo types.
  Swapping between a long‑range rifle and a closer‑range automatic covers both outdoor sightlines (streets, spaceport) and interior tunnels. Relying on a single weapon class can leave you inefficient in certain sections.

Handled methodically, Starfield’s Hostile Intelligence quest is less about mechanical difficulty and more about resource and positioning discipline. With proper use of Forward Base 441’s gear, steady pacing through Londinion, and deliberate handling of the three sample objectives, it functions as a clean bridge into the final UC Vanguard mission, A Legacy Forged.

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