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 mod visit our website:

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.

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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

News 0 comments

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

News 5 comments

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

Update is live

Update is live

News 4 comments

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

The next update

The next update

News 6 comments

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

RoZo - v0.5.021

RoZo - v0.5.021

Full Version 35 comments

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

RoZo - v0.5.018

RoZo - v0.5.018

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

Full Version 37 comments

This version is outdated and we don't give support for it anymore!

Post comment Comments  (70 - 80 of 1,236)


Reply Good karma Bad karma0 votes
3aGl3 Creator

I just added the tutorial video on LAN play to the video section. Please watch that, if there are still things unclear write again.

Reply Good karma+1 vote

Hey, if you see this, for Rozo 0.5.21, scopes need a buff. There is no reason to use them when pistols do more damage. I love scoping, as a 7 yr promod scope, and I use zombie mods like ROZO for quick-scope practice. but when you spend 11 hrs quickscoping a zombie, you just end up picking up a SAW. Pls make it at least 3-4 shots for a tank. It takes over 11 shots with a scope and it gets boring quickly because there are so many tanks.

Reply Good karma Bad karma+1 vote
3aGl3 Creator

Sniper rifles got buffed quite a bit in one off the last patches. I don't really see a reason to buff them again, considering you spend a mag or two an any other weapon class on tanks.

Reply Good karma+1 vote

You shouldnt be spending a mag or two with a scope. And it doesnt take "a mag or two" with other weapon classes unless its med-long distance. A scope shouldnt be taking longer than a MP5 to kill even a tank. 3-4 shots should be sufficient, not 17 (exaggeration, just kinda frustrated). And what patch were scopes buffed in? 0.6 or 0.5.21? The server I play on uses 0.5.17.

Reply Good karma Bad karma+1 vote

how to install this mod and whats your server ip??

Reply Good karma Bad karma+1 vote
3aGl3 Creator

You can download the mod from any server or if you like you can download a version here or for 0.6 here

Also we host a server with said version, running at this is currently the only place you can play it.

Reply Good karma+1 vote
3aGl3 Creator

Also a little clarification again for everyone. 0.6 is a completely new build and we use a lot off stuff that currently needs a lot of testing, thus there is only one server at the moment.
Later on I will send the serverfiles to a few trusted people to host servers as well and evenutally you will be able to play the mod offline, on you own pc. However this will still take a alot off time.

Reply Good karma+1 vote

server is in bug

Reply Good karma Bad karma+1 vote
3aGl3 Creator

What kind off bug? Right now it seems all fine so it can't be that big...

Reply Good karma+1 vote

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