Extermination achievement in Halo: Spartan Assault (Xbox 360)


Kill 10,000 enemies in co-op

2 guidesOnline Game ModeCooperativeCumulative +

How to unlock the Extermination achievement

  • Purple DinDonoPurple DinDono326,383
    25 Jan 2015 18 Apr 2015 18 Apr 2015
    7 0 9
    There is no tracker for this achievement in the game.

    Fortunately, it is not very long. Simply try to complete every other co-op achievement in the game and you'll be close to this one. I've personnaly finished around 15 missions in total, included first mission played 8 times before getting the achievement.

    There are a lot of ennemies in every mission but if you want to grind kills, go to mission 5 and pickup some incendiary grenades and thow them at the ennemies' spawns as they keep coming from them.

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    Bandicoot V2I'm the same. I can't get the 10k kills to sync. But you need to do the 5 players again
    Posted by Bandicoot V2 on 01 May 18 at 20:12
    GuidalitySame boat, cannot get 10k kills to sync over from X1 version. Even performed hard reset and moving save file around and still no luck
    Posted by Guidality on 12 May 20 at 21:39
    MetalliFANSNeed people for this achievement. Message me!
    GT: MetalliFANS
    Posted by MetalliFANS on 03 May at 23:33
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  • Inferno118Inferno1182,521,038
    20 Aug 2016 28 Aug 2016
    4 4 5

    The first red flag for me was when the co op achievements didnt pop even though I already completed the achievements on the X1. Then after grinding kills using the X1 solution for 4 hours, I checked Halo waypoint and saw I had 38k kills. Now I only got maybe 500 kills in the campaign as the achievements were retroactive from the x1/win8 versions of game for me. The same thing happened to my partner who was playing this as his only "spartan assault version". I assume the only way ppl are getting this nowadays is through a retroactive pop. I just wanted to warn everybody. i will update this if things change.

    In case you still want to try this, have one person open the door at the start on the right on mission 5 and have a player get the incendiary grenades then teleport back. The other player uses his one grenade on the flood spawn as he steps on the switch to hold them back and then the other player uses his 4 incendiaries spaced apart. There are 3 more fire grenades on the bottom right. You will average 500 kills a game.

    EDIT: I messaged the last couple people to unlock the achievement and it seems that the majority of them didn't restart the level ever. It seems that restarting doesn't count the kills towards the achievement, just the waypoint. I'm assuming this at least. Try killing until the time runs out or u die instead

    Edit 2: Kovy88 says if it doesnt pop retroactively try playing mission 1 on the xbox one of the single player then coming back to try mission 1 on co op in the 360 version. This didnt work for me but it may for you guys
    Showing most recent comments. View all comments.
    Inferno118This is very helpful, this seems to be the correct method to unlocking the achievement. I’ll have to give it a go
    Posted by Inferno118 on 02 May 18 at 17:48
    GuidalityUpvoting just for the fact that this solution led me to the workaround that fixed my sync error. Thank you Kovy88 for the fix that worked for me!
    Posted by Guidality on 12 May 20 at 21:50
    Bubba0796Ok, so I just unlocked this after much trial and error. For preface, I got every Spartan Assault achievement for both Windows 8 and Xbox One before I bought and played the 360 version.

    I tried all of the above solutions, playing the first level again of the Xbox One version, I tried the mission 5 trick to farm kills with a friend on two separate occasions until my waypoint was well into 15K, I even uninstalled the game and reinstalled it, everything.

    My friend recently bought the game to get the achievements as well and loaded it up to get all the single player ones. One week later we met up to get the co-op ones. His extermination popped but mine did not leading me to try the above steps. It popped for him by killing the first enemy on the first mission.

    So the next day we tried doing the first mission and I killed a few enemies and nothing happened, I tried again the next day, still nothing. I then tried completing mission 2 with another Xbox I had set as my home Xbox and matching with it. I made sure to finish the level each time and during the third reset it popped mid-game.

    TLDR; It most likely takes at least a week plus for the game to sync properly with your account despite Waypoint listing the kills. So I'd recommend either waiting a week like my friend or completing levels instead of resetting until you hit 10K. I hope this helps! This one was quite the struggle.
    Posted by Bubba0796 on 02 Aug 20 at 20:22
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