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.

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New HUD take three More progress More progress
Blog RSS Feed Post news Report abuse Latest News: RoZO - 9th March Update

0 comments by 3aGl3 on Mar 9th, 2015

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!

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RoZo - v0.5.021

RoZo - v0.5.021

Sep 17, 2013 Full Version 27 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 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

Mar 17, 2013 Full Version 35 comments

This version is outdated and we don't give support for it anymore!

Post comment Comments  (310 - 320 of 1,193)
Guest Dec 25 2013, 9:49am says:

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

3aGl3 Creator
3aGl3 Dec 25 2013, 11:09am replied:

It's planned and will be executed during the next months.

+1 vote   reply to comment
Guest Dec 22 2013, 5:42am says:

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

3aGl3 Creator
3aGl3 Dec 22 2013, 9:28am replied:

That issue is probably caused by screen resolution, the COD menus are totally **** to design and make them work on everyone's pc. In the next update the create a class menu will be changed, hopefully fixing that issue once and for all.

+1 vote   reply to comment
FallOutBoy88 Dec 15 2013, 2:17pm says:

hey just found out about this mod, seems amazing!!!! downloading now. Question - what version of cod4 is needed for the mod and also are any extra files needed or does the zombie mode work on normal mp maps??
neways AWESOME MOD!!! voting for you guys!!! thanxsssssss

+1 vote     reply to comment
3aGl3 Creator
3aGl3 Dec 15 2013, 5:04pm replied:

The servers are mostly running on v1.7 I think, I also never tested any older versions of COD. You do need altered scripts to run MP maps. For a lot of maps there are already scripts with it, also you can run the RoTu zombie maps.

+1 vote   reply to comment
nomyamr Dec 21 2013, 12:17pm replied:

hey bos... i cant download with slow connection with my game so i download manualy for this files
forgive me pls :D
thx for this awesome mods

+1 vote     reply to comment
3aGl3 Creator
3aGl3 Dec 21 2013, 1:22pm replied:

I'll try to upload an up to date download soon :)

+1 vote   reply to comment
nomyamr Dec 23 2013, 12:15am replied:

cant play lan ?
menu not work

+1 vote     reply to comment
nomyamr Dec 23 2013, 12:41am replied:

i mean...
no menus work... only work on official menu
i download with download manager not on my game
xxx /usermaps/mp_xxx.iwd
are this allowed ?

+1 vote     reply to comment
3aGl3 Creator
3aGl3 Dec 23 2013, 6:59am replied:

The latest standalone version is 0.5.21, found here on and our website. Any newer version can't be played on LAN for now.

+1 vote   reply to comment
DanVghs Dec 23 2013, 10:41am replied:

0.5.22 lan pls :D
thanks dude
Uuuuuu RoCk....!

+1 vote     reply to comment
teddybear23 Dec 24 2013, 12:11pm replied:

Yeah lan would be great for 0.5.22 if thats possible ofcourse.

+2 votes     reply to comment
3aGl3 Creator
3aGl3 Dec 23 2013, 12:04pm replied:

It's still under development, once we're completely done it will be released.

+1 vote   reply to comment
DanVghs Dec 25 2013, 3:06am replied:

hey brad...
are you allow me to edit rozo 0.5.22
like music and damage weapon or other
I would not shared pls :(
i need fast level
thanks :v

+1 vote     reply to comment
DanVghs Dec 25 2013, 6:57am replied:

rozo 0.5.21 not 22 ?

+1 vote     reply to comment
3aGl3 Creator
3aGl3 Dec 25 2013, 8:17am replied:

Just to make one thing clear, it seems certain people do have a different understanding of what "make public" means. All I do allow is making a server, you can tweak it in whatever way the dvars allow but you're not allowed to change any content of the .iwd or .ff files.
Anyone can have a look at the map .iwd files but even those are not to be altered in any way.
Also any kind of credits, copyright or whatsoever are not there to be removed, the mod is developed by MTG and several people helped us so it's our mod.
Also you might not run unofficial releases, such as the level hack that appeared some time ago.

+1 vote   reply to comment
DanVghs Dec 25 2013, 8:26am replied:

ok :D
now i need more long long time 4 level 100

+1 vote     reply to comment
3aGl3 Creator
3aGl3 Dec 25 2013, 9:13am replied:

Well, the new build has a new rank system, with level 90 or so you'll be already Prestige 1 Rank 50 or so in 0.5.022

+1 vote   reply to comment
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