ARC Raiders: How to Complete Collision Course – Fast Comet Guide

Collision Course only has one real failure point: the Comet enemy must die before it self-destructs. If it explodes on its own, or you kill it too late in that detonation window, you will not get the Comet Igniter. The clean route is simple: find a Comet, clear nearby enemies, soften it with a medium or heavy weapon, finish it quickly with Seeker Grenades or other burst damage, loot the dropped core, extract, and hand the item to Tian Wen in Esperanza.

That timing requirement is what makes this ARC Raiders quest awkward. Collision Course sounds like a normal kill-and-loot task, but it is really an enemy counter check: can you burst down the Comet before its built-in fail state? If you treat it like a slow, safe attrition fight, you can waste an entire run and walk away with nothing.

What Collision Course actually asks you to do

This is a Tian Wen quest with two objectives:

• Destroy a Comet
• Deliver a Comet Igniter to Tian Wen

The important detail is that these are not separate tasks in practice. You only get the Igniter if the Comet is destroyed early enough. An exploded Comet is basically a failed attempt, even if you technically survived the fight. Once you have the Igniter, the quest still is not finished until you extract and turn it in.

Best loadout for a reliable clear

The safest setup is built around burst damage, not sustained comfort. Recent guide consensus points to Seeker Grenades as the easiest answer because they let you finish the target quickly once its health is low. A standard firearm is still useful, but mainly to chip the Comet from range before the final burst.

• A medium- or heavy-ammo weapon to soften the Comet from a safe distance
• At least 2-3 Seeker Grenades for the finish
• Enough healing and ammo to deal with surrounding ARCs before you commit
• An extraction plan, because the Igniter does not matter if you die carrying it

If you do not have Seeker Grenades, the quest is still doable. Sustained firearm damage can work, and some recent coverage also mentions Snap Blasts or other high-burst explosive tools as backups. The tradeoff is consistency: without Seekers, your timing window feels tighter, so you need to recognize when the Comet is entering its self-destruct behavior and end the fight immediately.

Where to find a Comet for Collision Course

Most walkthroughs treat Collision Course as broadly map-flexible, meaning you are not locked to a single region. There is a small source disagreement here: some guides say the quest works on any map, while at least one later walkthrough specifically excludes Stella Montis. Because of that, the safest advice is not to rely on Stella Montis if you want zero ambiguity.

If you are choosing a hunt location on purpose, community coverage repeatedly points players toward Riven Tides, especially beachside areas, because Comets are commonly highlighted there. That does not mean Riven Tides is the only valid answer, but it is the easiest recommendation when you want a practical route instead of testing map exceptions yourself.

The Comet is a large rolling Arc, so do not confuse it with a basic roaming target. Before you start shooting, look at the space around it. This matters more than people expect because Seeker Grenades track the closest enemy. If smaller ARCs are crowding the area, your best finisher can suddenly veer off target and waste the attempt.

How to kill the Comet before it detonates

The most reliable rhythm is clear, chip, then burst.

• First, remove nearby enemies so your explosives do not lock onto the wrong target.
• Second, damage the Comet from range with your main weapon.
• Third, once it is clearly weakened, swap to burst damage and finish it before the detonation starts or completes.

This works better than opening with grenades because you are using your expensive tools only when they matter. A full-health Comet can survive sloppy explosive usage, and then you are left trying to close out the fight with regular gunfire while the self-destruct timer becomes the real boss.

One repeatable method shown across guides is to stay at mid-range, chip with a reliable firearm, and then dump Seeker Grenades for the last chunk of health. If you are carrying 2-3 Seekers, do not be afraid to commit all of them once the Comet is in finishing range. Saving one grenade for later often backfires because “later” is when the Comet is already too close to exploding.

If you are using only firearms, keep pressure on the target and do not stop to reposition unless you absolutely must. This is one of those fights where perfect ammo efficiency matters less than ending the encounter on time. A heavier weapon can make this much easier because it shortens the window in which the Comet can enter its fail state.

Looting the Comet Igniter and getting out safely

When the Comet dies correctly, it should leave behind a searchable core-like drop. That is what you want to loot for the Comet Igniter. Do not assume the quest updated just because the enemy died. Check your inventory or quest progress, confirm the item is actually in your possession, and then pivot immediately to extraction.

This part is easy to throw away. The Igniter is not the reward screen; it is a carried quest item. If the area is still hot, back off, heal, and rotate instead of standing over the corpse too long. Collision Course is effectively a two-step run: secure the drop, then secure the extract.

After extraction, return to Tian Wen in Esperanza and hand in the item. If you run into an older video or comment saying to deliver it to Cheyenne, treat that as a likely naming mix-up. The more reliable quest information points to Tian Wen as the correct hand-in NPC.

Common mistakes that make Collision Course feel bugged

• Waiting too long to use your burst damage. If the Comet is already entering its explosion behavior, your last hit may still be too late for the Igniter to drop.
• Throwing Seeker Grenades into a crowded fight. They can track the wrong ARC if something else is closer.
• Assuming any Comet kill counts. It does not. The kill has to beat the detonation window.
• Forgetting to extract. Getting the Igniter in-match is only part one.
• Testing uncertain maps when you just want the quest done. Because some community guidance conflicts on Stella Montis, use another map if you want a cleaner attempt.

Rewards for finishing Collision Course

Current reward listings are consistent across multiple sources. Turning in Collision Course should give you:

• Canto I
• Extended Medium Mag III
• Muzzle Brake II

If you want the shortest version of this quest guide, it is this: hunt a Comet on a safer map such as Riven Tides, clear surrounding ARCs first, weaken the target with your gun, finish fast with Seeker Grenades, loot the Comet Igniter, extract, and deliver it to Tian Wen. The quest fails at the detonation check, not at the damage check.