Hi, i managed to add support to l4d2.
I have to use sparc64 to convert the pcf back from version 5 to version 4.
Then i use tophatwaffle to convert the material from verison 7.5 to version 7.4.
Then due to l4d2, i need to package the materials and particles into a vpk so that client can render the effects.
Btw, can i upload the ported material and particles vpk to the workshop so that those who join my server can easily install the addon?
edit: video:
https://www.youtube.com/watch?v=I8YRwDFVt5M