GMod game "codes" with srcds

i am running a Gmod server, and im a dummy for these things.

when you download games for garry’s mod with the srcds you can use a file named server_download. my file’s content is this (from the GMod wiki http://wiki.garrysmod.com/?title=Windows_Dedicated_Server_Setup):

@echo off
cd c:\srcds
echo This will take a long time, I would recommend you go do something else.
echo Updating/installing CS:S
hldsupdatetool -command update -game “Counter-Strike Source” -dir C:\srcds
echo Updating/installing L4D/L4D2
hldsupdatetool -command update -game “left4dead” -dir C:\srcds
echo Updating/installing Episode 1
hldsupdatetool -command update -game “episode1” -dir C:\srcds
echo Updating/installing dods
hldsupdatetool -command update -game “dods” -dir C:\srcds
echo Updating/installing hl2mp
hldsupdatetool -command update -game “hl2mp” -dir C:\srcds
echo Updating/installing tf
hldsupdatetool -command update -game “tf” -dir C:\srcds
echo Updating/installing Orange Box
hldsupdatetool -command update -game orangebox -dir C:\srcds
echo Updating/installing Garrysmod
hldsupdatetool -command update -game garrysmod -verify_all -retry -dir C:\srcds
echo Update/installation Complete
echo Installed to c:\srcds
echo Your server is now ready to use!
echo To add extra addons or maps etc. place them in c:\srcds\orangebox\garrysmod
echo This installer can also update necessary server files, so it is recommended that you run it often.
pause

Here is the question: I’d like to get more games for the GMod server, cause there are textures that are still missing. So, could anyone type the code here to download them (like Alien Swarm, etc.)?

Sorry for my English, is not my mother language.

Thanks.

Edit: I’ve been searching and this is what i found, but doesnt solve my problem at all: http://forums.srcds.com/viewtopic/12473