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 different game 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

Versions and Releases

There are two versions off RoZO planned, first we got the normal version. It will include all off the features that we put into RoZO. Second we got the light version, this version won't include new weapons, and perhaps also some other things. The light version is mainly meant for people with slow Internet and to keep up compatibility with the default CoD4 1.7It is planned to release the light version a few days after the normal version since we will need a few days to update it.

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.


The weapons will mainly origin from Battlefield 4, however we'll also use other games as sources.Below is a list off weapons that can be considered to be confirmed. Italic text means the weapon is done and will be in the next update. As the light version will have all weapons form CoD4 MP they are not listed.
Melee weapons

  • M9 Bayonet


  • M9
  • M1911
  • Compact 45
  • Deagle 44

Sub Machine Guns

  • MP5k
  • Uzi
  • CZ-3A1
  • P90


  • 870 MCS
  • M1014


  • AKU-12
  • M4
  • G36C

Assault Rifle

  • AK-12
  • M16A4
  • G3
  • Bulldog

Battle and Marksman Rifle

  • M39 EBR
  • SVD-12

Sniper Rifle

  • M40A5
  • FY-JS
  • M98B

Light Machine Guns

  • PKP Pecheneg
  • M249
  • M60-E4

Special and Heavy

  • XM25
  • RPG-7V2

Gadgets and Grenades

  • C4 Explosive
  • M18 Claymore
  • M67 Frag
  • M34 Incendiary
  • M84 Flash
  • M18 SmokeFlare


You'll get to choose three supportstreaks to take with you into battle. Using a supportstreak will cost you a set amount off points, depending on how powerful the streak is. For additional streaks you can also buy airdrops from the armories or pick up powerups, depending on the gamemode. Below you find a list off likely supportstreaks.

  • Airdrops - can only be bought from the Support Armory
  • Sentry Turrets
  • RC Vehicles
  • Helicopter Support
  • AC-130 Support
  • Missile Support
  • Airstrikes
  • Juggernaut suits and similar gear


There will be a lot of different skills you can utilize. They will be split into 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.

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 Modeling, FX, Sounds
xFire: ki11ing3agl3
Twitter: @_3aGl3_
YouTube: 3vIl3aGl3

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

# ParadoX - Weapons
xFire: psilocybinsq

# ElTitoPricus - Characters
xFire: titopricus

# MrMelusin - Weapons

# Mitsurugi - Weapons

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
# DidUknowiPwn - New fonts

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 possible.
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 at the moment. 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.

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Blog RSS Feed Report abuse Latest News: RoZO - Big changes up ahead

5 comments by 3aGl3 on Jan 28th, 2015

So first off I want to apology to all of you out there who have desperately been waiting for news on RoZO. I don't really have the time to work on RoZO as I used to have, so I can of course not do as much on RoZO as I'd like to.Now let's get to some urgent questions that you are probably interested in!

1. Where did the Major part off the description go, again?
I deleted it for the time beeing as I'm not sure what weapons etc. will be used. Currently I'm making plans for that, which I will share with you all once they are done. And I know that I said I'll not Change them anymore and what not...

2. When can we expect more updates?
Soon, I hope that I can pick up work on RoZO once again and push out updates more frequent. I really wish that I can update our Server at least once a week, however that will probably not be the case.

3. What stuff exactly are you working on?
I plan to make two different versions of the mod eventually, allowing more people to play the mod without issues. One of these will be a 'lite' version, not containing bigger stuff like new weapons. The other one will be huge and awesome. To give you a small idea off what I plan

  • completely new weapons
  • Multiple attachments and options to customize the weapons
  • A variety off character customization
  • Globally saved ranks and statistics

4. What is comming next?
The following order is just very rought, however the account System is top priority.

  • MTG account System for saving ranks
  • Improvements to essential Features such as the spawn system
  • Gamemodes and the essentials off those
  • Further improvements to the mapping API and a How2 on mapping for RoZO
  • Improvements to the Skills, Ranks and Prestige
  • A new Zombie AI, adding stealth and other stuff
  • Additions to the Shop and Inventory
  • Killstreaks and other Support
  • New weapons and Equipment
  • Character customization
  • Proper ranked an d unranked gameplay
Media RSS Feed Latest Video
Downloads RSS Feed Latest Downloads
RoZo - v0.5.021

RoZo - v0.5.021

Sep 17, 2013 Full Version 25 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 35 comments

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

Post comment Comments  (50 - 60 of 1,171)
Guest Sep 4 2014, 12:42am says:

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3aGl3 Creator
3aGl3 Sep 4 2014, 7:08am replied:

It might help to start with a custom windows shortcut that starts the mod with the game instead of swapping to the mod using the menu.
I have a general idea of what is causing the problem, however I can't offer a fix for any old versions of the mod. All I can do is trying to avoid it in newer versions.

+1 vote   reply to comment
Mental4.BG Sep 3 2014, 5:26am says:

ok and what i have to search for answear you talked about?

+1 vote     reply to comment
Mental4.BG Sep 2 2014, 1:16pm says:

pls man i very wanna play this mod on host i dont care of the buggs i really wanna play it its very cool and nice but i dont know how to play it on host

+1 vote     reply to comment
Mental4.BG Sep 2 2014, 7:23am says:

ok but it has a way to play it on host and where is your forum send me a link directly at the forum and say me what i have to do

+1 vote     reply to comment
3aGl3 Creator
3aGl3 Sep 3 2014, 2:51am replied:

Here is a link directly to the forum:

+1 vote   reply to comment
Mental4.BG Sep 1 2014, 5:28pm says:

yeah yeah its very nice mod but i think i want play it with this buggs for now but i cant in host but i very want

+1 vote     reply to comment
3aGl3 Creator
3aGl3 Sep 2 2014, 5:36am replied:

For help requests that require more then just a simple answer please refer to our forum.

+1 vote   reply to comment
Guest Aug 30 2014, 5:17am says:

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3aGl3 Creator
3aGl3 Aug 30 2014, 7:53am replied:

Yes there will be a release (downloadable here and on our website) of the mod. However that will still take time, currently the mod is very buggy and most of the features are missing.
If you want to play it/see what it looks like now, please play on our server for the time beeing.

+1 vote   reply to comment
Guest Aug 28 2014, 9:13pm says:

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3aGl3 Creator
3aGl3 Aug 29 2014, 8:41am replied:

For 0.5 you can find the settings in config/rozo_general.cfg.
The dvar scr_zmb_explosive will disable all explosives, and the dvars with scr_zmb_ex_... will handle the explosive dogs etc.
Of course make sure you exec the config(s) before you start a local game. If you play on a server all you can do is ask the server owner to disable them.

+1 vote   reply to comment
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