NEVERMIND - I've found solution 
just needed to change my gameinfo.txt into a mix of SM file and DLC file that looks like this:
SearchPaths
{
GameBin |gameinfo_path|addons\metamod\bin
Game update
Game left4dead2_dlc1
Game |gameinfo_path|.
Game hl2
}
}
}
My game version is 2.0.1.4, I'm trying to run LAN Server on Windows (thru the console "map ~" command).
After installing newer versions of MM and SM my game started to crash after intro.
I have installed lots of releases of both MM and SM, and only
MMsource-1.8.1-hg699 + Sourcemod-1.4.0-hg2957 seem to let me get past the first loading screen. Moreover, with them installed I can't access The Passing DLC content (lacking menu options + can't access maps from DLC) and entering Addons screen result in alert that I got no Addon Support installed (even tho I got it). Any ideas how to get DLC working with MM+SM ?
PS. I've searched the forums, haven't found anything yet, most of people ask about dedicated server on linux :p