Battlefield 4

Battlefield 4

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Dirty Job

Dirty Job

Find the hidden tunnel in Caspian Border

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4.15%

How to unlock the Dirty Job achievement in Battlefield 4 - Definitive Guide

Go to D-Flag. Go down to the room with the laptop to trigger the levolution event (tower detonation). Behind the MG 32 Grenade Launcher is the entrance to the tunnel. Must be attained in a populated server. Any questions or suggestions feel free to let me know!


EDIT: Apparently you must be the first person through the tunnel for this to unlock. So get some fast transport and get to D flag as quickly as you can to earn the achievement. Thanks I Spiritus I for heads up.
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23 Nov 2013 21:42

22 Comments
Does the achievement unlock if there's no one in the server?
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By NitrousSpeed on 23 Nov 2013 23:40
No it has to be in a populated server.
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By Internet Ham on 23 Nov 2013 23:47
The tower was still standing when I got the achievement. No idea if I was the first through it! The gate was unbroken when I went through it though. Did you leave the tunnel through the water?
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By Internet Ham on 24 Nov 2013 19:34
The achievement description doesn't say find it first, so I don't know! Some of these achievements may be glitchy. I tried the Blind Bombing one on Oman and its not unlocking!
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By Internet Ham on 24 Nov 2013 21:39
It did not unlock for me. The tower was down and the gate was broken.
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By I Spiritus I on 25 Nov 2013 14:56
I got it with the reverse of your video, coming from the US side right at the start of the round I swam under the wall, ran to the pipe and it popped just as I was going up the ladder, I didn't have to touch the grate but it was unbroken.
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By iColdFusion on 29 Nov 2013 14:04
Can confirm it is glitched.
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By Emzx99 on 29 Nov 2013 15:37
When I unlocked it I went through the water entrance first. It unlocked when I was in the tunnel, I did not break the gate as I killed the person that did, that was climbing down the ladder.
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By BlazinBuckwheat on 30 Nov 2013 12:28
I got this last night in a Rush server. Both fences were cut already and it still popped for me. Though I can't be completely sure I was or was not the first person through the tunnels.
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By Brian Beer God on 07 Dec 2013 01:23
You definitely have to be the first through, because I had a couple of failed attempts. When I did unlock this it was on a Team Deathmatch server.
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By HoMeRSiMpSN on 10 Dec 2013 03:24
You don't have to be the first through if you join late. If you join late, get there before anyone else and it will still pop.
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By Boomer93Sooner on 10 Jan 2014 18:29
My friend got this right at the start of conquest match. He was the first one in there. We swam in from the water side. I was about 15 seconds behind him, following him. When I got the top of the ladder, the acheivement popped for me too. So obviously it doesnt have to be the first person in there. I just think it is very glitchy. Maybe it is fixed now as they patched the other achievements. So maybe this one works normally now.
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By Arsenic 17 on 05 Feb 2014 00:53
just got the achievement. i joined a game in the middle of a conquest round and the levolution event already happened. swam into the tunnel and it popped when i got to the ladder.
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By NE0182 on 04 Apr 2014 14:32
You definitely do not have to be the 1st person...I got it late in a game and I even passed two players coming out of the tunnel.
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By JLogan27 on 16 Jun 2014 12:55
It seems to have been patched that anyone through gets the achievement.
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By Internet Ham on 16 Jun 2014 22:30
It didn't have to be the first person. Several teammates run through the tunnel and it still got it!
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By Kennyannydenny on 21 Oct 2014 15:57
Two friends got the achievement in one game, you do not have to be the first one through.
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By Bill a Bob Joe on 10 Feb 2015 15:13
My buddy and I both unlocked it at the same time, may have been first two together. In a squad together.
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By iMaginaryy on 26 Feb 2015 17:22
You don't have to destroy the tower either. I went down the tunnel and to where the water starts and the cheevo popped for me.
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By ProbablySkilled on 25 Jun 2015 19:22
Need help

Gt; J The Altruist
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By J ROLL 1998 on 01 Jan 2021 14:54
I got the achievement when the tower had fallen and I did not break the fens I join a game Halfway Through spawned at the tower and the tower was on the ground I went down the stares and saw a broken fence decided to explore and ended up in a tunnel swam out and got the achievement by accident
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By SkilfulJordan on 02 Dec 2013 18:15
Hey guys me and a friend are looking for help to do these DLC Achievements on the Xbox One. Both China Rising and Second Assault DLCs. We both got a refund on Premium so any time soon will no longer have the DLCs... Just need 2 more players and we can all take in turns getting each one. Easy enough. There are never any servers to find if we wanted to try legit either. Message me if interested thanks! My Gamertag is "NoizeJunky362"
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By UnlikeKaiju on 19 Dec 2013 00:59
View all 22 comments Show less comments
Just unlocked it... and again, thanks to Xbox One Game DVR I can show you how i got it.smile

After multiple attempts, i think i figured it out.

(3) requirements

#1.You have to do this in a match.

#2. I believe that the "levolution" event in Caspian Border cannot have been triggered, meaning, the tower needs to be still standing.

#3. The gate at the end/beginning of the tunnel (depending on which way you're entering it from) needs to be broken by YOU as well.

Good luck, and get to that tunnel/gate fast!
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6 Comments
you are completely wrong I got the achievement when the tower had fallen and I did not break the fens I join a game Halfway Through spawned at the tower and the tower was on the ground I went down the stares and saw a broken fence decided to explore and ended up in a tunnel swam out and got the achievement by accident so your
requirements are not necessary
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By SkilfulJordan on 02 Dec 2013 18:11
or you can update your Solution
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By SkilfulJordan on 03 Dec 2013 12:54
You definitely have to be the first through, because I had a couple of failed attempts. When I did unlock this it was on a Team Deathmatch server.
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By HoMeRSiMpSN on 10 Dec 2013 03:25
I have never been able to be the first person there and cannot unlock it just by going through the tunnel. The game also needs to be active I believe. You cannot do this on an empty server.
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By Dragun on 10 Dec 2013 20:22
Thank you. I was wondering why it wasn't unlocking for me.
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By BatMatt93 on 03 Feb 2014 11:52
You do not have to be the first person to go through. I was following my buddy at the beginning of a Conquest match. We went in through the water entrance. He got the achievement. I was about 15 seconds behind him. I got the achievement as well when I got in to the room above the ladder.
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By Arsenic 17 on 05 Feb 2014 00:51
View all 6 comments Show less comments
Got this recently. Can only add to the mystery. I entered via the drain into the river. Swam up into tunnel to see a teammate already there. Thought i will have to wait till next round of CB but it popped?? grates where already cut when i got there.

only conclusion i can see is you must enter from the river.
note: not sure if timer to take down tower had started.
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12 Mar 2014 20:44

1 Comment
I joined a Conquest game. The grate was already cut, no idea if anyone else had been through the tunnel but I unlocked the achievement. I went down through the tower at D.
I don't think the levolution had been triggered.
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By LeiChat on 03 May 2016 21:41
Difficulty: Easy

Play a large scale game on Caspian Border, like Conquest, and head to point D.
To simplify this you'll want to do a server search so you can find only games on this map.
There's a lake around one side and a barely visible pipe in the water.
Dive at the pipe and swim through. You'll get the trophy at the other end after a bit of running (It's not too far at all).

If you want to see the pipe then here's a decent video walkthrough:
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31 Aug 2015 12:35

There’s a hidden tunnel in the river that runs between C and D flag (B and C flag on the PS3 a.k.a. Conquest Small version). Dive underneath the water by pressing to get through the tunnel entrance and then dive up. Once in the tunnel, the trophy will pop. See the video below showing the exact location of the tunnel (at around 0:50 min).

Credit to Harry94_ for the video.

Alternatively, you can simply enter the tunnel from the other side, the entrances being the tall, green tower and a building next to it at D flag (C flag on the PS3). Thanks to AlphaCookie for the tip.

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By the D flag if your playing conquest there is a lake on the side with the huge wall that divides the map. In that lake there is a drain pipe that you can enter by swimming under water. When you enter make sure you go all the way through to get the trophy.
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24 Mar 2014 23:34

The tunnel is located underground, below the D flag (Hilltop) in Conquest. Enter the main small building on hilltop, go down the stairs into the room with the laptop where you’re able to trigger the tower levolution event (but do not trigger it) and you will see behind some boxes a vent. Knife through both fences of the vent, go down the ladder, sprint to the exit where you will swim out from under and end up in front of the Forest flag. The achievement will unlock once you’re in the water.

This can be done in either Rush, Conquest or Capture the Flag and the game must have at least 4 players present, this cannot be done in pre-game or alone. The achievement will only unlock for the first person in the match to enter the tunnel which makes this quite difficult. Also, the levolution event cannot have happened at the time of entering the tunnel, if the tower has fallen then the achievement will not unlock.

The video below shows how to go through the tunnel by entering under water from the exit.

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detailed instructions

https://www.youtube.com/watch?v=o9D7nK8NS7c
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09 Feb 2014 11:07