Aliens: Fireteam Elite 2 Enemies

The briefing is the roster

You do not need a 40-row bestiary to drop. You need the faction on the card and the three names that wipe a Fireteam when ignored: Siren, Warden, Harbinger. Everything else is a modifier on that rule. Full mission index: missions.

Names on this page are text on purpose

P1 can grow `/enemies/siren` style pages later. This run does not upload entity portraits. If a name is here, it is from official dossiers, showcases, GamingBolt / Steam community writeups, or Day-1 patch enemy strings — not a fan wiki HP dump.

The next section is the Xenomorph types people actually search: Siren, Warden, and the rest of the corridor.

Siren is the search term for a reason

Official-style field notes: the Siren screams for reinforcements and is a priority target even when its personal threat is listed Low. Previews also say it tries to escape. That combination is why every launch-window “what to shoot” list starts here. If you only remember one Aliens: Fireteam Elite 2 enemies rule, remember this: a live Siren is a worse problem than a dead Warden you have not started yet — unless the Warden is already in melee.

Warden is not a fat Drone

Dossier language: stockier than a Praetorian, sudden speed, melee that knocks Marines over, acid spit to lock a lane. Community breakdowns asked whether it is an “armored Spitter.” Until the live tell is captured, treat it as a zone bosslet: do not stand in the acid, do not let it break the crouch gunline, and do not chase it into a vent while a Siren is still calling.

Exploder is the other new hallway tax. The next section is the kill order when two of these spawn together.

Low threat on the card is not low priority

The Siren dossier lists threat Low because the body is not a Warden. The danger is the call. Inverse: a Facehugger is also Low, and you still respect it because a latch takes a gun out of the Fireteam. Read role, not the color of the word “Low.”

Friendly fire does not pause the caller

On Extreme / Insane, the thermal mag that would delete the Siren also deletes the crouched Duelist. Crouch the gunline, call the lane, then shoot. Difficulty owns the rule set; this page only cares that a friendly-fire down is a Siren that lived.

Xenos are not the only pool. Pathogen and Synths rewrite the same priority list.

Harbinger is the Pathogen Siren

Not because it calls — because the cost of ignoring it is a Marine who cannot shoot. Multi-arm, more mouth than body, relentless chase in the public field analysis. If a Harbinger and a Siren spawn together, interrupt the grab if someone is already pinned; otherwise delete the Siren so the room does not double. There is no verified “always Harbinger first” on this wiki.

Synths punish a Xeno kit

They think in cover. A thermal-only Fireteam that just cleared a hive will bounce off plates and lose the angle fight. Swap to Electric / Piercing, stop standing in the open, and treat the Bulwark as a moving door in front of the gun Synths. Returning-player salt about hitscan chip is noted in community breakdowns — live projectile behavior stays TBA.

Horde is where those three pools share a map.

Crusher the map is not Crusher the enemy

The Horde map named Crusher and the armored-runner Xenomorph share a word. Do not assume the map is a Crusher-only pool. Read the wave. Horde owns cards and hold points.

What to read after the roster

You now have a kill order. The mag that makes it cheap is elemental ammo. The drop that previews the mix is missions.