i was using all survivor packs mod ,but doesn't change survivor name...
even i use mod replace 1 survivor still no work...
please give me suggestions or help..

Its a odd bug i had as well, if your using multiple survivor packs then it will only read the changes of one of them, an "easy" way to fix this is to open the mods you use with GCFscape and change the closed captions file names to the names you want to use then pack it back up into a VPK.

Best place to start. Teaches you everything in name changing. If its still hard, the easiest option is somewhere in the comment. [Only if you don't want to remove the resource folder]

http://www.l4dmaps.com/details.php?file=18669

would be a bit easier if you find the dominant caption txt file as it seems to have more of an effect than the lesser ones it should work considering i have done this a few times