Halo: Reach

Halo: Reach

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Emergency Room

Emergency Room

Anniversary: Infected 3 players in a single round in a matchmade Infection game.

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How to unlock the Emergency Room achievement in Halo: Reach - Definitive Guide

The only way to get a zombie game now is in the Living Dead playlist and the only Anniverary maps that are in this playlist are Breakneck, Penance and Solitary. Obviously with this being mixed in with all the other maps it can take some type to find the map you need. I personally got this on Penance after several hours of matchmaking and have never seen the other maps come up.

The official playlist information is posted below for confirmation or in case the situation changes again and my solution becomes redundant.

https://www.halowaypoint.com/en-gb/games/haloreach/playlists
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28 Oct 2012 10:23

12 Comments
Condemned is a Defiant map, not an Anniversary map.
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By RikstaG on 31 Oct 2012 06:40
how can you done this achievement only with 4 players???? if infection playlist need 12 players...... this achievement flag need update to fill lobby
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By Concetto18 on 20 Jun 2020 20:39
Has anyone tested custom games?
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By Dragonbreath825 on 22 Dec 2020 00:51
Just a heads-up for those still going for this achievement: Breakneck, the remake of Halo 2's Headlong map, will also qualify for this achievement.
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By CyberPunch83 on 01 Sep 2021 18:13
Guys, create a boosting session or forum post. Solution comments are not the place for arranging boosting and doing so is frowned upon by site mods.
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By nightw0lf on 25 Oct 2021 21:17
Edited, sorry.
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By o SeduLOUs o on 31 Oct 2012 10:07
You can also get it on Breakneck. :)
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By RikstaG on 31 Oct 2012 23:58
this is crap. Since the Halo CEA disc only has Anniv. Classic (and that's it) now, they are making you buy the Anniv. DLC again just to get these achievements in the Reach disc hopper.
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By Shadow XBL on 11 Feb 2013 07:54
Quarantine also works for this in Living Dead. You do NOT have to buy the Anniv DLC to get this - I got it with only the Halo CEA maps with the Reach disc.
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By nightw0lf on 16 Jul 2016 22:59
I can confirm nightw0lf
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By GUYS GHOST on 04 Jan 2017 19:11
Just unlocked on Quarantine
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By maguzzolo on 02 Oct 2017 20:03
DON'T USE A COMMENTS SECTION TO ASK TO BOOST!!!

Use the game's forum or create a gaming session. All boosting comments will be deleted.
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By Beanpotter on 12 Dec 2021 11:35
View all 12 comments Show less comments

Search for an Infected game in the new Anniversary playlist. As an Infected, you must kill three human players in the same round. The human players are armed with magnums and shotguns and can prove to be quite the threat. Try to sneak up on them or overwhelm them with a direct assault with multiple Infected teammates in order to score your three kills.

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