yeah , i found it
toto change 3 to 2
Here's how you can get the original survivor's on your server:
1.Download this modified version of csm (characer select menu) that allows for Bill to be selected (as well as the original survivors). Put that plugin on your server. (Credits to mi123645)
2.Download Kswki´s plugin to allow change automatically all survivors to have different models. Here (credits to Kwski43)
3.Download the Super Versus Plugin if you have a server of 4+ v 4+. (Makes everyone a different character, so you will have all 8 survivors on a team if it’s 8 v 8 ). Not forget to set max survivors to 8. (credis to DDRKath)
4.(Optional). Download +8 players bugfixes. Go here. (credits to V10)
5.(Optional). Download the infected bots plugin, to spawn more special infecteds at once to balance the game when using 8 survivors. Official thread here. (credits to mi123645)
6.(Optional). Use this addon to have new survivors icons for l4d1 players. (Credits to Selek).
http://forums.alliedmods.net/showthread.php?t=124737