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 a lot of new weapons.
For more infos about the mods different versions 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.


As the light version will have all weapons form CoD4 MP they are not listed.

Melee weapons

  • M9 Bayonet


  • M9
  • MP443
  • QSZ-92
  • Desert Eagle

Sub Machine Guns

  • MP7
  • SR-2
  • Uzi
  • P90


  • Remington 870
  • DAO-12
  • Double-Barrel


  • AK5c
  • AKS-74u
  • ACE 21 CQB1

Assault Rifle

  • AM16A4
  • AEK-971
  • M416

Battle and Marksman Rifle

  • SA-85
  • SKS
  • Kel Tec RFB

Sniper Rifle

  • M40A5
  • SV-98
  • FY-Js

Light Machine Guns

  • M249
  • PKP Pecheneg
  • Type 88 LMG

Special and Heavy

  • XM25
  • RPG-7V2

Gadgets and Grenades

  • C4 Explosive
  • M18 Claymore
  • M67 Frag
  • M34 Incendiary
  • M84 Flash
  • M18 Smoke
  • Flare


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
# MA85 - Providing various assets
# JeffSkye - Making scripts for MP maps to run with 0.6

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.

Image RSS Feed Screens
Almost done New HUD take three More progress

Today I updated our Server again, here is a quick Changelog:
- Tried to fix the font placement in the new menus
- Added more master server queries for a web based server list
- Fixed a bug where players could get stuck on barricades
- Removed the Change Class button
- Made the leave Game buttons show up in the team select menu at all times
- Fixed an issue where you couldn't change team to spectator
- Fixed an issue where the Controls button wouldn't show up in the team select menu

Also make sure to like our Facebook page to get those small updates faster!

RoZO - 1st March Update

RoZO - 1st March Update

7 months ago News 0 comments Report

I've did a few small updates to the server in the past week, which I'll all explain here. Also we'll make some changes to our website.

RoZO - Big changes up ahead

RoZO - Big changes up ahead

8 months ago News 5 comments Report

Finally some News again, regarding RoZO! And they aren't even the worst News.

Update is live

Update is live

11 months ago News 4 comments Report

The 0.6.012 Update is now live, come check it out on!

The next update

The next update

11 months ago News 6 comments Report

As we are getting closer to the next update I wanted to share some info about it.

Return of Zombie Ops is a zombie modification for Call of Duty 4, it features content from Black Ops Zombie mode aswell as from Modern Warfare 3 Survival mode and Ghosts Extinction mode. It's set slightly in the future with some weapons from Ghosts...
RoZo - v0.5.021

RoZo - v0.5.021

2 years ago Full Version 29 comments

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

RoZo - v0.5.018

RoZo - v0.5.018

2 years ago Full Version 34 comments

This version is outdated and we don't give support for it anymore!

Return of Zombie Ops 0.5 Beta Release

Return of Zombie Ops 0.5 Beta Release

2 years ago Full Version 36 comments

This version is outdated and we don't give support for it anymore!

Post comment Comments  (0 - 10 of 1,218)
Spartan-627 Sep 13 2015 says:

I really enjoy your mod! I play by myself offline and a recent hardware issue forced me to reinstall COD4 :( I lost all my Rozo stats and unlocked weapons unfortunately (I was like rank thirty something)... Is there a way to retrieve all the weapons I had earned or get back to my rank? Really hoping I don't have to start over again... BTW Looking forward to the new release when its ready! Thanks!

+1 vote     reply to comment
Wizga Sep 8 2015 says:

There should be more maps to play on!! Only so far it has been Bog, Countdown, Overgrown, Shipment, Showdown and that custom map with a church(When I have played of course). I think you should remove Shipment because it's too small and add more maps like Bloc, Broadcast, Wet Work, Vacant, one big map like Pipeline.

Anyway I love this mod and server!! :)

+1 vote     reply to comment
Guest Sep 4 2015 says:

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

3aGl3 Creator
3aGl3 Sep 5 2015 replied:

Either load one of the older version or hop onto the server to download it. The download section of our site is still under construction.

+1 vote   reply to comment
Wizga Sep 3 2015 says:

You seriously need to fix that stupid glitch on map Shipment - the one where a zombie ends up glitched and cannot be killed!!!

+1 vote     reply to comment
3aGl3 Creator
3aGl3 Sep 4 2015 replied:

Working on the zombies but it'll take time as it's huge changes. (Not only addressing this bug)

+1 vote   reply to comment
Revan98 Aug 28 2015 says:

What is serwer IP?

+1 vote     reply to comment
3aGl3 Creator
3aGl3 Aug 28 2015 replied:

+1 vote   reply to comment
celsoviana21 Jul 27 2015 says:

It's actually a good project this mod I liked this mod rozo just thought I had to have correct error can add, change weapons to weapons do not know if you have update to version 0.5.21 hopefully yes, for me it was the best version course has bugs but there are perfekt design project worth 10, very show.

+1 vote     reply to comment
e99wright Jul 25 2015 says:

I'm trying to download the RoZo Mapping Extension and I cant seme to find it. 3agl3, could you send me the link to the RoZo Mapping Tools so I can continue making progress on my RoZo Map?

+1 vote     reply to comment
3aGl3 Creator
3aGl3 Jul 30 2015 replied:

I'd like to put mapping for RoZO to a stop for the moment as I'm in the process of redesigning the mapping things.

+1 vote   reply to comment
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