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2. MW3 - Slaughterhouse achievement

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MW3 - Slaughterhouse achievement in Call of Duty

MW3 - Slaughterhouse

Kill 50,000 total Enemies in MWZ

-1.0

6 guides

How to unlock the MW3 - Slaughterhouse achievement

• tentlease

  Locked 12 Nov 2023 06 Sep 2024
  26 4 216

  Actions

  As of patch 1.33 the amount of zombies that spawn at exfil sites have been drastically reduced and the exfil timer has been increased to 45 seconds. That method is still doable but instead of getting up to 5,000 kills a game you will get around 300-800 kills a game using that method. Luckily, "DDShadow", "Tylerroosky", "MoG Alucard212", and "TyroneRundaGang" have mentioned an alternative way to the exfil camping strat that can generally get you anywhere between 1,500-3,500 kills. Currently the fastest strat is the outlast control strat.
  
  After the season 1 patch, this has been completely reset for some players. If you played on Dec 7th before the 2nd 5GB update came out, then you got reset back to 0%. As of December 8th 2023 the kills are appearing correctly again in most people's stats however the achievement still has not been fixed for those effected by the reset, and any kills earned before the season 1 patch are still not counting regardless of what the kills in the stats say for those that have been effected. It is recommended you try to earn all 50,000 kills in one season, just in case this happens again when another season update comes out.
  
  Nukes do not count for kills and should be avoided.
  
  Turrets had stopped counting kills in a previous patch, but other people are reporting that they are now counting the kills again, so use at your own risk.
  
  Outlast Contract Strat
  Find an outlast contract (icon looks like a satellite dish) on the map and activate it. After activating the contract, "leave the area and roam around to find the zombie spawn point (can be a little further away). 10 zombies will spawn at once but when you kill a zombie another one will spawn making it again 10." Using this method you should be able to average 1,500-3,500 kills per game depending on the loadout you use. RGL-80 and PHD Flopper is probably the best combo, but use whatever you feel the most comfortable with.
  
  Spore Control Strat
  Find a spore control contract on the map and activate it. Once activated, find spores that are located close to one another and throw down the inhibitors on the spore circles. (Try to get at least two or three spores for maximum efficiency). Don't attack the spores. The zombies will then come to you, making it easy to average somewhere between 1,500-3,000 kills a game as long as no one else in the game messes with your spores. If you have the RGL-80 and PHD Flopper it will make this 10 times easier. (Just don’t accidentally blow up the spores)
  
  Act 1 Final Mission Strat
  Start up the mission and get to the end of it where the objective will say "Escort Dr. Jansen to helipad." Once you get to this part of the mission, stand around the helipad and the zombies will spawn in endlessly. The fastest way to kill them would be using the RGL-80 with PHD Flopper and if you have an aetherium crystal (preferably the refined aetherium crystal or the flawless aetherium crystal) you can use that to make it faster. If you have turret circuit boards, you can put them in the sentry gun at the exfil to make this method even faster. Each circuit board only lets the turret run for 2 minutes, so the more you have the better. You should be able to average anywhere between 2,000-3,000 kills using this strat. If you prefer a visual guide, I've included a video below. Video belongs to "MrDalekJD".
  

  
  Multiple people have reported that while using the tombstone glitch that none of their kills were counting, so it's best to avoid doing that while going for this achievement.
  
  Old method/Exfil Method
  

  *** Spoiler - click to reveal ***It appears that right now the best way to farm kills is to camp at an exfil location. The exfil locations are marked on the map as a person walking through a door, and they spawn in about a minute or two after the match starts. Once they spawn, head over to an exfil location and let the zombies spawn in. Once all the zombies are dead, call in the exfil helicopter and kill all the zombies that spawn in and let the helicopter leave. Continue to let the zombies spawn in before calling the helicopter to get a second wave of zombies until the match timer ends or until you want to exfil out of the game. You should be able to get at least 2,000-5,000 300-800 kills per match depending on what setup you are using.
  
  Games Master has pointed out that using the RGL-80 grenade launcher is a good alternative to the turret strat.
  
  RGL-80 Grenade Launcher Strat
  “Once you have it, put it as your insured weapon, and you can load into games and go straight for exfils. Herd the zombies as you would in older CoDs and pop them. Feels even quicker than the turrets (instant kills) and with all the ammo that drops that isn't a problem. Not to mention, if you have it insured you can drop it for anyone else so that they can exfil with it, then insure it too.”

  
  
  To view how many kills you are currently at, go to the MWZ lobby → press → scroll down to the "STATS" tab → press → then press and it will show the amount of kills you have under time played. Both zombies and mercenaries count towards this achievement. All kills will count as long as you die or exfil. Disconnecting will not count any kills.

  Guide not helping? View 5 more guides for this achievement.

  Showing most recent comments. View all comments.

  I got 3,200 kills using the youtube video method I shared above as my best so far.

  Posted by Danger Days 11 on 10 Sep at 18:22

  Thxs

  Posted by OBlockMafia on 21 Sep at 10:46

  I'm adding a comment here because I can't stress enough how useful doing the "Extraction" Act 1 Story Mission is.
  
  You can get anywhere between 2000-3000 kills from farming Outlast, yes. But if you go straight into Extraction afterwards you easily get another 3,000 kills without needing to bring in new gear.
  
  I ALWAYS got at least 5,000 kills by the end of the 90 minute match with this method, once getting as high as 7,500.
  
  It's just more convenient because you're basically getting two games worth of kills in a single match (no need to exfil, recraft gear, wait to load in, run to Outlast, start Outlast. You can just exfil straight into the mission and rush the helipad)

  Posted by EDAboii on 04 Oct at 10:22

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• BabyishDuck

  23 Dec 2023 22 Dec 2023 25 Jan 2024
  11 1 11

  Actions

  Fastest way to get zombie kills at the moment is with the Outlast contract.
  
  Best weapon to use for the Outlast contract is the RGL-80 Grenade Launcher. You can find this weapon under the launchers section for your insured weapons.
  
  

  

  
  
  Having perks can also help such as Jugger-Nog, Speed Cola, PHD Flopper and Quick Revive. Most important perk to have I think is PHD-Flopper as the splash radius of the grenade launcher is crazy. PHD also helps with the fire from the dogs.
  
  Also having the Raw Aetherium Crystal Schematic can be helpful also, as it will give you level 1 pack-a-punch.
  
  Good areas to do the Outlast contract from my experience are as follows:
  
  Seaport District - West side of the map.
  
  

  

  
  
  I've done a few games here where I got over 4000 kills.
  
  Orlov Military Base - North East of the Map.
  
  

  

  
  
  I've had my best game here to date with over 5100 kills, I went up 10% in the achievement tracker in one match. If you have the zombies spawning at the dock overlooking the water you are set for lots of kills in the match.
  
  One downside to the Orlov Military Base is that sometimes there will be a mercenary stronghold with the machine inside. You'll need to go to a Mercenary Camp and get the keycard or buy one from the buy station to open it.
  
  Shahin Manor - Southeast side of the map.
  
  

  

  
  
  This is where the big manor is at the bottom right corner of the map. I had a game here where I got over 4500 kills where the storm was at the top of the map.
  
  Once you get to the Outlast contract area, start the machine and wait for it to get to about 20% or so. After this run out of the building and look for where the zombies are spawning. Another great tip is that you can somewhat change the location of where the zombies spawn by getting the generator to go over 50%. Credit LordFightALot.
  
  Having the storm at the opposite side of the map to where you are can help as you'll have more time to farm kills. I've done this a few times where I stayed with 4 or so minutes remaining and the final exfil chopper spawns. This will happen once all other exfil locations have been consumed by the storm.
  
  You generally want to stay in tier 1 area for farming kills as there wont be any super sprinter zombies/disciples.
  
  When going off the for the day, be sure to build any of the perk/weapon schematics that you have.

  Showing most recent comments. View all comments.

  I found a premium Outlast contract - 3 different zombie spawns within spitting distance, and after 40 minutes only got 2500 kills (I've updated my strat to also to Act 1's "Extraction" mission in the same run, which often nets me another 1000-2000 kills). So maybe 4000 is possible, but I think you need a stroke of luck to get that level of efficiency.

  Posted by sjpsjpsjp on 29 Dec 23 at 01:27

  4k is not hard with pack a punch crystals. I've been getting 6-7% per game without crystals which is 3k-3.5k a game. With crystals you could skip all the setup and I could see 5k being possible

  Posted by GSR CAOR on 27 Aug at 04:01

  Also, just keep the contract between 60-90% complete. Just make sure you don't accidentally end it early. Zombie spawns seem to jump dramatically when close to finishing the outlast contract.

  Posted by GSR CAOR on 27 Aug at 04:04
• Akhis

  22 Dec 2023 11 Dec 2023 11 Dec 2023
  8 0 6

  Actions

  As of the latest patch (Season 1), it seems that ALL progress for this achievement has reset. It may say on your Xbox tracker that you still have the same percentage, but this has reset to 0. Meaning any kills you had BEFORE Season 1 are wiped from the Xbox files. The kills you have saved in the CoD files under Stats are still the same though. Will this be patched? Probably not. Does it suck? Absolutely.
  
  The only good news we have from S1 being introduced is they tweaked the exfil zombie numbers. They increased the amount by about 60%. It isn’t like the original amount from before they patched it, but there are a lot. they also cut the exfil reset from 2 mins down to 45 secs. I started with about 40 mins on the clock and left 7 mins left with storm active and got about 4% (around 2,000 kills). I had 18% (9000 kills) before S1. I played multiple games after S1 and racked up around 8000 kills. I then did some exfil farming, and around halfway through my achievement went up to 19%, meaning I reached more kills then I did last season. So yes, this achievement can still be unlocked. The tracker is not stuck, the tracker just simply reset.
  
  To all the people that were hundreds of kills off before Season 1, my condolences. To those who are just starting the grind, goodluck

  Showing most recent comments. View all comments.

  I think Spores are the most efficient anyway as you can set them off and even if the inhibitor despawns and the Spore goes back to blue the zombies keep coming. I'm getting 2200 kills a game doing that and also ranking up a few different small guns while doing it. The only issues is if you bring in resources then you don't have an opportunity to reclaim anything so it's more efficient to wait for the cooldown and go again.

  Posted by Shadowclast on 12 Dec 23 at 10:16

  How are you getting over 2000 kills a game? I’m doing the spore method and I only average 1600 kills a game. I even stay after the storm starts closing in too.

  Posted by ol ALEXKING lo on 15 Dec 23 at 09:14

  For me the best method to farm was the "satelite image"-mission. Start it, go to the area and activate the mission objective. After doing so leave the area and roam around to find the zombie spawn point (can be a little further away). 10 zombies will spawn at once but when you kill one another one will spawn making it again 10.
  Depending on position and loadout I managed to get around 2.500-3.500 kills per round.

  Posted by MoG Alucard212 on 18 Dec 23 at 07:53