I decided to undertake the massive task of zombifying the pedestrians of GTA IV, altering every model's textures to look like recently re-animated morgue residents.
After over a year of work, there are more than 200 zombies roaming the streets of Liberty City, the world's latest necropolis!

CURRENT VERSION (2.0)

211 zombified pedestrians
I performed extensive reworking of many zombies I had already completed, bringing them up to a higher level of quality.
131 were revamped for this release, receiving detail upgrades across the board from new wounds to distressed clothing.
Spawn only zombies!
Replacing your pedgrp.dat file with the one provided makes GTA IV only spawn the pedestrians whose models are zombified, so that everyone you see will be infected.
Warning: this may crash your game if you enter a cutscene.
Improved custom load screens & menus
New blood red colour scheme and zombified main cast portraits
Zombocalypse now comes in two flavours!
PRELOADED:
a larger download that has all of the zombies pre-installed into the componentpeds.img file. Eliminates some of the hassle of installing.
DIY EDITION:
has all of the texture files loose, meaning you can pick and choose who you want zombified.

I have realized that it would take a lot more time to finish the remaining 80+ zombie peds in GTA4, let alone those in EFLC, so I'm stopping here.
There's plenty for people to play around with now, and I'd like to attmept zombifying a few of the main cast.
Any future updates to Zombocalypse will be small ones along those lines.

REPLACES:

- WTD texture files in Componentpeds.img
- pedgrp.dat (optional / risky)
- Many menu files (optional)
- Loading screens (optional)

REQUIREMENTS:

Spark IV for importing textures
http://code.google.com/p/gtaivtools/downloads/list

Packed using WinRAR:
http://www.rarlab.com/

HIGHLY RECOMMENDED:

To immerse yourself in a zombie apocalypse experience, install Left 4 Liberty as well:
http://www.gtagarage.com/mods/show.php?id=16192

DOWNLOADS:
Zombocalypse 2.0 DIY Edition [450 MB]
Rapidshare link: http://is.gd/iHMfmO
Filesmelt link: http://is.gd/s679eP

Zombocalypse 2.0 Preloaded [715 MB]
Rapidshare link: http://is.gd/d29xI2
Filesmelt link: http://is.gd/wmZzhd