1. Halo Wars: Definitive Edition Achievements
2. Drain Cleaner achievement

Halo Wars: Definitive Edition

Xbox Game PassPC Game Pass

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1,500

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4.19

113,239

3,436 (3%)

25-30h

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Drain Cleaner achievement in Halo Wars: Definitive Edition

Drain Cleaner

Kill 20 enemy squads with a continuous Covenant Leader Power on Memorial Basin.

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2 guides

How to unlock the Drain Cleaner achievement

• Drome17

  26 Feb 2017 26 Feb 2017
  88 1 9

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  An easy way to so this is 1v1 Deathmatch on easy with both players as the Arbiter. Instead of attacking the AI player, just run around the outside of the map attacking the Forerunner Reactors and the single building locations. Each spot has 3 units next to them with a total of 24 units total.

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  Still worked for me, same as the 360 version. Not sure why it didn't work for Seripha. I did kill a combo of the rebels and enemy units though.

  Posted by EarthboundX on 26 Oct 21 at 04:21

  Worked for me, and like EarthboundX, I had to kill a few of the AI troops.

  Posted by Stumpy25 on 18 Nov 21 at 07:37

  worked for me, but I always have to do a full shutdown at the end of the day or before I start playing to receive credit for achievements in this game...

  Posted by Albino Bob 325 on 03 May 22 at 01:06

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• EnceIaduX

  30 Dec 2016 30 Dec 2016
  39 4 3

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  If you want to do this solo:
  
  2 v 2 Deathmatch on Memorial Basin, choose Heroic for the difficulty. I chose Arbiter's as all 4 leaders (important not to be against UNSC leaders as they can disrupt your leader power quite easily).
  
  Arbiter is more agile and easier to keep alive than the Chieftan and Prophet imo. As well as the advantage of being able to walk around the map freely in your leader power.
  
  When the game starts, build your leader temple and simply fill the remaining base slots with Warehouses and Shields. You can occupy the free base as well to build more Warehouses (although the 15k resources you start off with is easily enough).
  
  Activate Arbiter's leader power and head straight for the enemy base(s), they should have multiple units out already. Start smashing the daylight out of all the enemy units with the Right Stick, you should amass 20 kills in no time.
  
  Just make sure that you are always in your leader power, you will know this as the camera will be zoomed in really close on the Arbiter. Don't ever press Y after activating it.
  
  Took me 4 minutes from start to finish.

  Showing all 3 comments.

  It's worth mentioning that the marines that show up around the map (the ones you sometimes have to kill to get their bases) DO count towards this. When I tried this, my health started getting low, so I killed a couple of them to stay safe and it popped. I'm guessing the flood also count.

  Posted by DarkWingSpartan on 24 Feb 17 at 21:19

  Every time I try this, the camera angle takes me into a place where I can't get out because the Arbiter apparently ignores commands through terrain.
  
  Update: Easy with a controller. Not possible with m/kb, because of how the controls get you stuck.

  Posted by EmagDrolBot on 03 Aug 20 at 20:07

  Works perfectly with XBOX controller which makes it easier.

  Posted on 22 Mar 21 at 14:22