I host Unreal Tournament and Rune Co-Op, and Rune "Halls of Valhalla" on a RedHat 7.2 box...
Here are something to consider...
1.) SME is using a old Kernel that I have red works Great for web/mail/file serving but I dont think it is up2date enough to run Counter Strike. I know that my Loki Game's Rune and RuneHOV needs 2.4.x and XFree86 3.3.5 or newer.
2.) Is this a Linux Version of Counter Strike? Or are you going to use WINE or another emulater to try and get it to work?
3.) Without a graphical interface like KDE or GNOME, will you be trying to do multi-games or multi tasks? I have tried bare-bonez RedHat 7.2 and I personally didn't care for the Text Interface. It was too much trouble move files, and editing files for newer maps, mods, skins, textures ect.....
Here is a link to my local LUG (Linux User Group) or CLUG (Cleveland Linux User Group) and their Counter Strike Project.... You should be able to find something there.... If not do a search in Google "Linux Counter Strike".....