Zombie Army Trilogy

Zombie Army Trilogy

68 Achievements

1,000

40-50h

Xbox One
Xbox Series
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You're so dead, you don't even know it

You're so dead, you don't even know it

Engaged in a 4-player co-op game and beat a Campaign level

30

4.34%

How to unlock the You're so dead, you don't even know it achievement in Zombie Army Trilogy - Definitive Guide

You need to be 4 players, doesn't matter what character and need to beat a level of one campaign, a whole level (1 of the 5for each campaign).

Choose "Cadet" skill, and choose the "Zombie amount" for 1 player and you can breeze through in a few minutes.
I would choose the first level of the first campaign, it's the easiest.

You have to be 4 players in the lobby and then start a game and play it till the end together to get the achievement.
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07 Mar 2015 21:00

28 Comments
We played a game with three people and one join after half of the level and no one got the achievement.
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By Mr Terence Hill on 08 Mar 2015 11:55
Has to be four players at the start of the lobby. Completed one level with 4P, but the 4th player joined only at the church fight on level 1. No achievement.
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By neeker75 on 09 Mar 2015 03:15
My partner and I both joined a quick game close to the beginning of the level (definitely did not start in the lobby) and the chievo popped for both of us.
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By RebornPasture on 19 Aug 2016 12:58
Still need this, i have 2 people if anyone else is available.
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By MikeProcurator on 05 Sep 2016 01:52
Me and a friend are looking to get this if 2 other people want to help us out.
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By A4TH BrokenHalo on 25 Feb 2017 05:57
I joined an ongoing match towards the end with 3 randoms, and got the achievement. So you don't have to star fresh in the lobby with 4 players, you just have to be lucky and find a match with 3 players already in (if not boosting).
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By simo949 on 26 Feb 2017 20:11
I'm not having much luck find any rooms. Might end up setting up a game session for it this weekend.
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By A4TH BrokenHalo on 28 Feb 2017 04:24
Anyone still need this? Drop me a message
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By AgEnT STARZz on 22 May 2017 12:18
anyone want to do this need 2 people message me
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By Mazdei on 27 May 2017 15:04
I joined a random game almost at the end of the level and unlocked the achievement, also you must be alive at the end of the level as one guy died and did not get it.
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By DeltaGunnz on 12 Jul 2017 15:41
Anyone still need this, need 2 people?
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By MYST3RYROCKY on 11 Sep 2018 23:16
We have 3 of us looking for a 4th. We are all in the United States. Message me if interested.
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By ClockKingRM on 15 Oct 2018 06:14
Still need this one, any help would be awesome?
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By DmCTHREE6 on 19 May 2019 23:59
Anyone up for helping with this quick? Bit late to the game and can’t find no one GT Juicy Plumbs
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By Juicy Plumbs on 14 Sep 2019 12:15
Still need this. Will be online today 6pm pacific time.
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By SgtScrotes310 on 31 Oct 2019 17:05
Anyone help me with this? Gamertag: Obey Bakerrr
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By Obey Bakerrr on 26 Apr 2020 20:28
Obey Bakerrr did you still need this achievement? Me and a friend still need this but can’t find another. He’s got 2 accounts and will play 2 consoles we just need the 4th?
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By SgtSparky006 on 13 May 2020 17:12
anybody still need this?
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By xXBS91Xx on 17 Jun 2020 13:54
Looking for people wo also need this and other MP achievements. Drop me a message & we can arrange a time that works for everyone
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By Mark Doran on 18 Feb 2021 10:52
Add me to get this
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By pillzbury dboy on 17 Mar 2021 20:08
Looking to get this one done if anyone can help. Currently got a session for Friday on here but happy to do it whenever
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By Sussey5 on 11 Jan 2022 15:58
I'm after this achievement as well Bonebag3 is my gamertag
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By bonebag3 on 08 Feb 2022 10:20
Anyone looking for this achievement? Gamertag is Welfran
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By welfran on 26 Apr 2022 00:44
Need help with this : heatgamer700
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By Heatgamer700 on 05 Aug 2022 15:31
Hey me and a friend are down for boosting this achievement, add me.
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By Reiiiatsu on 23 Jan 2023 12:47
Need more people for this Achievement add me
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By CooKalyptiK0 on 17 Sep 2023 01:30
As previously mentioned i wasn't in from the lobby with the people i unlocked it with, i joined a ongoing game although it was at the beginning as in the only person that had scored had 60 points.
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By TheTrollinNooB on 29 Mar 2017 03:30
The way the achievement is designed is annoying. If you don't have 4 people when you start from the lobby, you cannot get it even if you finish the level with 4 people (assuming you start with three people and than someone joins in the middle of your game).
However, that someone that joins in the middle of the game gets the achievement. The three people who start from the beginning to the end of the level do not get the achievement. I know it is weird but it happened to me.
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By TheFirstWonder on 29 Mar 2019 00:43
View all 28 comments Show less comments
I would like to add more information in addition to the previous guide by Ehrenfried. So here is my suggestion for those who don't have online friends to boost with.
- Attempt to join random campaign match
- If you success in joining, you will be immediately directed to a screen where you will see names of other players (on the right hand side). There are four rows, each player’s gamertag will be displayed in each row.
- if you see that all the rows has gamertag (that means there are four people including you), you are good to go. Try to finish the level and hope that nobody quitting out. Or if someone quit out, but new person join in to complete the group of four, you are still good. Complete the level for your achievement.
- However, if you see that there are less than four people (you see one or two blank rows without gamertag), you may drop out immediately or wait a little bit in case someone join in and complete a group of four.
Again the idea is to attempt to join a game that already has 3 people playing. It does not matter if you start from the lobby or in the middle of the game, as long as you are the fourth person to join, you will get the achievement. The other three who join earlier before you will not get the achievement.
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29 Mar 2019 07:39

Play co-op with 4 players with 4-player zombies on cadet. Use the boosting thread to find partners. You're best off setting the zombie count to 1-player and Cadet difficulty to make it easier and quicker to do a level.

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*ONLINE REQUIRED*

For this you need to complete a level in the campaign with four players in co-op. All players need to be in the lobby before the game starts and still in the game when you finish the level. Late joiners or leavers will void the achievement. As public games tend to start too quickly you'll either need to pre-plan this with three other people or play a game and hope nobody leaves during the next map.

If you need assisitance, you can post in the Official XBA Boosting Session Information & Discussion thread.

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It is better to have three friends with this game, as practice has shown, most random people leave the game, even when there are 5 seconds left until the end of the level. You also need to go through the level from beginning to end, in an already ongoing match, if you connect they won’t give you a trophy, and if three of you started , and finishing with four will also not give a trophy.
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16 Nov 2015 20:00

1 Comment
I was picked up by a quick search, fourth at the end of the task, ran around zombies for 3 minutes, knocked down the task, completed the task, received a trophy.
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By starpuk on 27 Feb 2016 11:44