Return of Zombie Ops is a zombie modification for Call of Duty 4, it features content from Black Ops Zombie mode as well as from Modern Warfare 3 Survival mode and Ghosts Extinction mode. It's set slightly in the future with weapons from Ghosts, Black Ops and Modern Warfare series.

For infos about 0.5, a forum to discuss the mod and other things visit:

Main features off the mod

  • Different Zombie (PvP and PvE) Gamemodes
  • A big arsenal of new weapons
  • Character customization
  • New rank system with 10 Prestige ranks
  • Challenges for extra money, XP and items
  • Skill trees for a more personal character

Setting & Background

In RoZo a military special force tries to get control over the zombies outbreak that started by accident in a testing laboratory. You take over the role of one of the field soldiers, you have to face the zombies armed with anything that's available. The HQ will send you objectives and support during the mission.


Assault Rifle

  • Iron Sight
  • Reflex Sight
  • EoTech Sight
  • ACOG Sight


  • Suppressor
  • Muzzle Brake
  • Grip


  • Semi-Auto
  • FMJ
  • Extended Magazines
  • Rapid Fire


  • M4 (Integrated Grip)
  • AK-12
  • SA-805
  • Remington R5
  • FAD
  • G36C

Submachine Guns

  • Iron Sight
  • Reflex Sight
  • EoTech Sight
  • ACOG Sight (maybe something else here)


  • Suppressor


  • FMJ
  • Extended Magazines
  • Rapid Fire


  • MP5k
  • Vepr
  • CBJ-MS
  • Bizon
  • P90
  • AK74u


  • Iron Sight
  • Reflex Sight


  • Slug


  • Extended Magazines


  • FP6
  • USAS-12
  • Jackhammer

Light Machine Guns

  • Iron Sights
  • Reflex Sight
  • EoTech Sight
  • ACOG Sight


  • Grip


  • FMJ
  • Extended Magazines


  • MK46
  • M60E4
  • L86 LSW

Sniper Rifle

  • Scope
  • ACOG Scope
  • V-Zoom


  • FMJ
  • Extended Magazines


  • L118A
  • MK14 EBR
  • Lynx
  • VKS


  • Suppressor (TAC45, Skorpion and Glock 18)
  • Akimbo


  • TAC-45
  • Skorpion
  • .44 Magnum
  • Glock 18
  • Desert Eagle
  • B2023R

Lethal Equipment

  • M67 Frag Grenade
  • Canister Bombs
  • Semtex
  • C4
  • Claymore
  • Betty

Tactical Equipment

  • Flash Grenade
  • Smoke Grenade
  • Concussion Grenade
  • Flare


  • Panzerfaust 3
  • Combat Knife
  • Ballistic Knife
  • Minigun
  • Mk 32

Italic weapons are a Signature weapon, they are specially unlocked and have attachments equipped.



You'll get three killstreaks, which you can select. Also you can buy certain support from the Support Armory in some gamemodes. The streaks are still subject to be changed. The current names are likely to be placeholders and to identify the streaks.

  • Care Package - can only be bought from the Support Armory
  • Emergency Airdrop
  • Sentry Turret
  • Sentry MK-19
  • RC XD
  • RC Helicopter
  • Attack Chopper
  • Chopper Gunner
  • Pavelow
  • Pavelow Gunner
  • AC-130 Strike
  • AC-130 Gunner
  • Reaper
  • Predator Missile
  • Airstrike (likely several different ones)
  • Little-Bird
  • Nuke
  • Juggernaut
  • Maniac
  • Mortar Strike
  • IMS
  • Assault Drone/AGR/UGV
  • Gryphon/Dragonfly


There will be a lot of different skills you can utilize. They will be split into four different skill trees, while the first one is free after ranking up to rank 2 you will have to pay for another skill tree. Also you can take only one skill tree into battle.

Weapon Specialist
Focused on weapon handling and damage.

Focused on melee combat and protection.

Focused on technical support, such as killstreaks.

Focused on keeping the team alive.

Character Customization

You will be able to customize your character in several different ways. For example you'll be able to choose your gender, uniform and headgear.


# 3aGl3 - Head developer, Scripting, 3D Modelling, FX, Sounds
   xFire: ki11ing3agl3
   Twitter: @_3aGl3_
   YouTube: 3vIl3aGl3

# Lefti - Scripting, 2D & Texture, Community Leader
   xFire: left4dgoe

# ParadoX - Main 3D Artist - Weapons
   xFire: psilocybinsq

# ElTitoPricus - Main 3D Artist - Characters
    xFire: titopricus

Special Thanks

# Sanya - Help with Player models

# Susel - Help with Effects

# NNJ - Help with the CodX core

# IZaRTaX - Helping out with mapping and cooperating for creating RoZo maps

Help and Support

For help and support on the mod please visit our forum and make a post in the RoZO section rather then using the ModDB comments section!

Abandoned/cut features

If you are following RoZo for a certain amount of time now you have sure seen a lot of features being announced and later disappear again. Of course we'd like to keep as much as possible in the mod but that's just not fitting.
One of the options if that a feature/item is not fitting the concept of the mod or interfering with other things.
Another, and probably the one we encounter most of the time, option is that COD4 has certain engine limitations, that we can not work around nor influence in any way. So we have to create a mod within those engine limitations. To do so we have to abandon certain things to make room for new or just to be within the limits. If a thing you absolutely loved is among the abandoned stuff we're sorry but please keep in mind that there are also other people who want to enjoy the mod, so not everyone can have his favorite stuff.

Image RSS Feed Latest Screens
Lynx GM6 MK14 EBR L118A
Blog RSS Feed Report abuse Latest News: The next update

6 comments by 3aGl3 on Oct 14th, 2014

Hello everyone,
as we are getting closer to the next update, which will be a big step forward, I wanted to give you some preview on it's contents.
As I mentioned a lot of times before we are getting a Class System, now this isn't like the RotU one or the COD4 one, I am talking about Skilltrees, Skillpoints and benefits resulting from them.
If you read the ModDB page you probably saw that I changed the Class part a few times, that is due to the fact that I couldn't make up my mind what kind of Classes would fit the best for RoZO. But now the time has come and I am finally set on the structure and the Classes.

1. How much Classes are there?
1) There will be three Classes, the Soldier, the Specialist and the Special Operator. (The names might change again) Each of the Classes will be divided in two Sub-Classes. Spending your first Skillpoint in on one of the Classes will give you your first weapons. All Classes will also get a Combat Knife.

2. Tell us more about the Soldier!

2) The Soldier is focused on Assault Rifle, Sub Machine Guns and Explosives, he can get C4 and the MK32 through his Skilltree. The Skilltree is divided into Assault and Armored, he starts with a M4A1 and a TAC .45. The Assault is focused on dealing more damage while the Armored is focused on sustaining more damage without dieing.

3. Tell us more about the Specialist!

3) The Specialist is focused on Light Machine Guns, Shotguns and Heavy Weapons, he can get Medikits, Ammo Boxes and the RPG through his Skilltree. The Skilltree is divided into Engineer and Medic, he starts with a FP6 and a Skorpion. The Medic is focused on providing medial supplies to the team while the Engineer is focused on providing technical supplies to the team.

4. Tell us more about the Special Operator!

4) The Special Operator is focused on Sniper and Marksman Rifle, Silenced Weapons and Melee combat, he can get Claymores and Bouncing Betties through his Skilltree. The Skilltree is divided into Assassin and Marksman, he starts with a L118A and a Skorpion. The Assassin is focused on stealth combat while the Marksman is focused on long range combat.

5. How many Classes can I have?
5) Without entering Prestige you will only be able to spend Skillpoints into one Skilltree at a time. For a fee you can reset all your Skillpoints and spend them in another one, however you will not get another set of weapons. At Prestige ten and twenty you will unlock a second and third Skilltree to spend Skillpoints in, however only one can be active.

6. Will my Skillpoints be lost when I enter Prestige?
7) Nope. You will keep all your Skillpoints during Prestige, to max out all Skilltrees you will need to reach the maximum Prestige Level of 25.

7. What about for example "Classic", do I get my stuff?
7) Yes, all gametypes will now give you your selected starting loadout, your abilities, etc.

8. Anything else that changes, related to the classes?
8) Actually yes, I'm probably going to change the weapons again, to give a more balanced count for each class. Also the "Classified" weapons from RoZO 0.5 will be back, this time earned for the classes respectively.

9. That's all? :(
9) Of course that is not it, it's just what I can tell more or less for sure. As mentioned in 8. I am going to change the weapons again, even though hopefully not to much there might be changes to the starting weapons for each class.

Feel free to post any related questions you have here, I will answer them as soon as I can.

There is another thing I also want to speak about, now that we get closer to the next update.
For RoZO 0.6 I set up a login system, that will be used on every official ranked server.

1. Uhh, what does that mean?
1) In order to play RoZO on a Ranked Server you will need to create an account, it's completely free and doesn't take long. Once you play you need to log onto that account, if you always play on the same server you shouldn't have to relog every time you play, so don't worry.

2. What are the advantages?

2) All your progress, like your level, kills, skills, ... are saved in a database and can be accessed from any RoZO Server. So for example if you play on our server you can carry over your progress once your Clan hosts a server. Also if you reinstall your game you just need to log onto your account again and your progress is all right there. Rank hacking is made a whole lot harder and furthermore we are going to host a website where you can look up your stats, your friends stats (if they have their profile public), manage your account, etc.

3. Disadvantages?
3) Well yea we are probably going to have some disadvantages too. When you connect to a Ranked Server you have to fetch your online profile like in the more modern COD games. Also all Ranked Server have to have the latest update or at least a minimum version.

4. You are talking a lot about "Ranked Server", what is that?

4) A Ranked Server is a server on which you can gain ranks, that is basically it. To see the difference you need to know what other stuff there is. Aside from Ranked Server there will be Unranked Server. The main Reason for those is that you need a special COD4 server version and a plugin to gain access to the database with the player info but we still want everyone to have the opportunity to host a server and of course not to forget LAN or local games. While you will have your (last known) rank on any online Server you can't gain XP. On an Offline Server you won't have a rank at all but may get access to all items, however those won't be saved.

5. Does my account name have to be specific?

5) Other then that you can remember your name and password and a few limitations (e.g. no <>"), no. Also your account name won't be shown in game, the name you choose in the menu will apply.

6. Can I sign up yet?
6) If you want to sign up you can do it here. I strongly recommend doing it on the website, as you can not set you email, etc. in game and thus won't be able to get your password if you forget it. After signing up in game you can fill out the fields in the account management however. Oh but note that most of the website is still missing, also if you encounter any bugs please let me know.

Feel free to post any related questions you have here, I will answer them as soon as I can.

Downloads RSS Feed Latest Downloads
RoZo - v0.5.021

RoZo - v0.5.021

Sep 17, 2013 Full Version 24 comments

Final release of RoZo v0.5, no more big updates on this.

RoZo - v0.5.018

RoZo - v0.5.018

Jun 9, 2013 Full Version 34 comments

This is the latest build of RoZo that is public. Enjoy :)

Return of Zombie Ops 0.5 Beta Release

Return of Zombie Ops 0.5 Beta Release

Mar 17, 2013 Full Version 34 comments

Return of Zombie Ops Mod 0.5.017 Beta Release, public Version.

Post comment Comments  (500 - 510 of 1,145)
arnold1996 Aug 22 2013, 1:08pm says:

How many crysis weapons will be in the new version?

+2 votes     reply to comment
3aGl3 Aug 22 2013, 6:09pm replied:

Currently I'd have to say countless because I lost track...3-4 or so. But that update is still pending.

+1 vote     reply to comment
THE-REAPER1 Aug 22 2013, 11:59am says:

3aGl3 please upload 0.6 here, though its beta but its ok... because download speed from cod4 is ****. it would be better to download it from here.

+1 vote     reply to comment
3aGl3 Aug 22 2013, 1:01pm replied:

I could upload the files which are required to play but they change quite often so it doesn't makes a lot of sense.

+1 vote     reply to comment
Lefti Aug 22 2013, 12:59pm replied:

We dont public the version 0.6 now.

+1 vote     reply to comment
Guest Aug 21 2013, 12:28pm says:

This comment is currently awaiting admin approval, join now to view.

arnold1996 Aug 23 2013, 5:57am replied:

Skillet Whispers in the dark!
I dont listen skillet because it's too lighty to me :D
But i know that band!

+1 vote     reply to comment
METAL_141 Aug 19 2013, 12:54pm says:

I can't join the server(0.5),alway OUT TIME

+1 vote     reply to comment
3aGl3 Aug 19 2013, 2:08pm replied:

It seems that the server experienced some downtime, maybe that was the problem?

+1 vote     reply to comment
THE-REAPER1 Aug 20 2013, 6:32am replied:

Wait but... your server is legit and my game is cracked, so i can't play on it... or is youur server already cracked..?

+1 vote     reply to comment
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Call of Duty 4: Modern Warfare Icon
Mod Team Germany
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Release Date
Released Jul 31, 2013
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41 votes submitted.

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Highest Rated (3 agree) 10/10

Best cod4 mod ever !!!

Aug 22 2013, 6:50am by MatChris011

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