The entire Z-Serpent series that could be found, part of 2 of 2.
Included in this file is the entire contents of the ZSerpent series from 21 to 28.
Z25 contains assets and a library that is essential for objects in the level, simply follow the readme for instructions. Z28 contains a massive PAK file that must be moved to the main game folder in your Crysis directory.
Somehow it didnt work for me. Yellow balls everywhere,despite
following the readme
I've had issues with custom assets on Crysis before. I would say go on the forums, but Crytek bulldozed most of the user-map forum posts.
I'd try to help by fiddling with the folders to find a workaround, but I've got a lot on my plate at the moment. I really wish I could though :(