There's a mod for Wolfenstein: Enemy Territory called:
True Combat: EliteIt's CS style with terrorists verses CTs.
Its still in Beta but its a lot of fun.
Iron sites (no gunsites other then Iron), lean functions etc...
Small maps, instant action and no vehicles.
I play it more then anything else.
Wolfenstein: Enemy Territory is a free download, so is TC: Elite.
Just make sure you have the lastest version of both. There aren't a lot of servers but if you use ASE you can add TC: Elite to the games list by coping and pasting this into your filters.txt file:
Wolfenstein: Enemy Territory\True Combat Elite
Icon: $BASE\tcetest\elitelogoicon.ico
Mutex: WOLFETGAME
IRC: irc.enterthegame.com/truecombat
1 if game ~!= "tcetest" remove
Wolfenstein: Enemy Territory\True Combat Elite\Body Count
Mutex: WOLFETGAMETCE
1 if g_gametype != "7" remove
Wolfenstein: Enemy Territory\True Combat Elite\Objective
Mutex: WOLFETGAMETCE
1 if g_gametype != "5" remove
Wolfenstein: Enemy Territory\True Combat Elite\Reinforced Objective
Mutex: WOLFETGAMETCE
1 if g_gametype != "2" remove
Wolfenstein: Enemy Territory\True Combat Elite\v0.48
Group: WOLFETTCEVER
Mutex: WOLFETTCEVER
1 if tce_version != "Beta 0.4 Build 8 PUB 22-02-2005" remove
Paste it right after fter the ET Last Man Standing entry in your ASE filters.txt
When you run ASE TC:Elite will be found within Wolfenstein: Enemy Territory.