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How to Beat The Sergeant in Warframe (2026): He Is Never Invulnerable, So Keep Shooting
A sniper who vanishes but never turns invulnerable: aim for the head
Last Updated on September 30, 2026
The short answer
The Sergeant is a stronger Sniper Crewman with a Lanka and a flash bang that turns him invisible. He is vulnerable the whole fight, so keep moving, aim for the head, and use the objective marker when he vanishes. He drops Mag parts.
Reviewed September 30, 2026, current through Update 44 (Iceblade of Narin). Every number on this page has two sources; this page is re-checked after every major patch.
| Detail | Answer |
|---|---|
| Node | Iliad, Phobos (Assassination) |
| Faction and tileset | Corpus, Corpus Ship |
| Level | 13-15 (Steel Path 113-115) |
| Unlock | Complete Monolith or Kepler on Phobos |
| Weak point | Head, double damage |
| Weak to | Magnetic damage |
| Danger | Lanka: a charged sniper rifle with high damage |
| Signature drop | Mag Neuroptics, Chassis or Systems blueprint |
Table of Contents
The fight
- Move and use cover. The Sergeant hides and snipes, and the Lanka hits hard.
- Take out his shields and health directly. There is no invulnerable phase.
- Aim for the head. Headshots do double damage.
- When he throws the flash bang and vanishes, do not stop. He is still killable and the objective marker shows where he is.
- Keep the pressure on so he cannot go back to sniping.
What it drops
| Drop | Chance |
|---|---|
| Mag Neuroptics, Chassis, Systems blueprint (one per run) | 38.72% / 38.72% / 22.56% |
| Magazine Warp, Thief's Wit | 38.72% each |
| Shocking Touch | 7.52% |
| Orokin Cell | 2.58% |
Tips that save runs
- Magnetic damage works on him.
- A frame that hits hard at range, or one that can go stealthy, makes this fight short.
Mistakes that waste runs
- Stopping to wait for him to reappear. The marker shows where he is, and he can still be hit.
- Standing in the open at range against a charged sniper rifle.