A list of server running the RoZo 0.5 can be found here

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
  • Iron Sights


  • 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
  • Tomahawk
  • 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, Ideas, Scripting, 3D Modelling, FX, Sounds
   xFire: ki11ing3agl3
   Twitter: @_3aGl3_
   YouTube: 3vIl3aGl3

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

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

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

Special Thanks

# Sanya - Help with playermodels

# 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 rather then using the ModDB comments section, as that has proven to be very confusing.

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
Pop goes the zombie Pop goes the zombie R5 RGP
Blog RSS Feed Report abuse Latest News: RoZo Update and Server issues

10 comments by 3aGl3 on Jul 15th, 2014

Hey everyone I'm here today to bring you some news, regarding RoZo and our official server.
Let's start with the server.
Currently we have some issues with our root, so our website, game and TS3 servers are down for the time being. I hope that we can sort out the issues as soon as possible and bring everything back up.
Since we had some issues with our server the game servers are still down and we also set up a totally new website. We are sorry for the inconvenience, all three game server should be back up during the next weeks.

Now let's get to the more interesting news. You might ask yourself how the next update is comming along and I'll be honest, a little slower then I wish for. However, as you probably seen, I could show off a little bit here and there in the last few days again and hope that I can keep stuff coming for the next days.
Since the last news I wrote we changed some things considerably and even though those changes are making some stuff easier and hopefully the final mod more fun, they threw us back quite a bit in development.

Now let me just post the current (15th July 2014 6PM) changelog.

    - Level: Changed the way the mod handles map objects
    - Gamemode: Survival now usually features only weapon, equipment and air support armory (how much depends on the map)
    - Gamemode: Arena got a complete rework (still not fully done)
    - Gamemode: Classic now features the Treasure Chest, Perk Machines, and if possible weapon pick-ups similar to COD:Ghosts Extinction Mode/COD:Zombies (map dependant)
    - Game: Reworked the way loadout is kept track off
    - Game: Changed the way weapons are dealt with in every aspect

    - Loadout: A new way weapons are handled allows for multiple attachment choices and makes Pack a Punch a viable option
    - Level: Added some basic motion to the barricades
    - Player: Various 3rd Person animations
    - Weapon: R5 RGP, animations and models from Ghosts
    - Weapon: TAC .45, animations, models and sounds from BO2
    - Weapon: Skorpion, empty reload animation from Single Player
    - Weapon: .44 Magnum, animations, models and sounds from Ghosts
    - Weapon: Glock 18, animations, models and sounds from MW2
    - Weapon: MP5, animations and model from BO2, sounds mixed
    - Weapon: Vepr, animations, models and sounds from Ghosts
    - Weapon: CBJ-MS, animations, models and sounds from Ghosts
    - Weapon: PP-19 Bizon, animations, models and sounds from Ghosts
    - Weapon: FN P90, animations, models and fire sounds from MW3

    - General: Pretty much all contents have been removed, this is pretty much a restart

Downloads RSS Feed Latest Downloads
RoZo - v0.5.021

RoZo - v0.5.021

Sep 17, 2013 Full Version 23 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  (10 - 20 of 1,103)
MR_Wazzap11 Jun 30 2014, 10:36am replied:

Could the reason that it's not working be because the game is located in \Program Files(x86) and with Windows 8 not letting it access the files? Windows 8 is unnaturally strict over it's program access, I'll try outside it to see...

+1 vote     reply to comment
Guest Jun 30 2014, 10:52am replied:

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MR_Wazzap11 Jun 30 2014, 11:08am replied:

It totally worked! Thank you so much! Now the game is much better.

+1 vote     reply to comment
MR_Wazzap11 Jun 30 2014, 11:00am replied:

never mind, I just ran it again and it magically worked -_- I will test if the configs are loaded.

+1 vote     reply to comment
MR_Wazzap11 Jun 30 2014, 10:58am replied:

"Exceeded limit of 1000 'xmodel' assets." is the error message I get after that.

+1 vote     reply to comment
3aGl3 Jun 30 2014, 11:05am replied:

Try a map that's actually supported.

+1 vote     reply to comment
MR_Wazzap11 Jun 30 2014, 11:17am replied:

I did, I was using mp_shipment.

+1 vote     reply to comment
3aGl3 Jun 30 2014, 12:25pm replied:

No you did not, that error isn't "just appearing at times". It will appear on certain maps only and on those maps always. Unless you modified your game, the map or the mod it's impossible.

+1 vote     reply to comment
MR_Wazzap11 Jun 30 2014, 12:57pm replied:

The only thing I can think of is the location of the game install. It was back in \Program Files (x86) and on Windows 8 the rights are really strict and it may not have proper access inside that folder. It worked again when I moved it back onto my desktop (The game install I mean).

+1 vote     reply to comment
MR_Wazzap11 Jun 30 2014, 12:43pm replied:

Well apparently not.

+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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40 votes submitted.

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Highest Rated (3 agree) 10/10

Awesome mod and finally a different zombie mod

Aug 23 2013, 7:32pm by LEGX|VeNoM

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