Cfg questions

r_finish use when you got laggy input. eats a lil fps on older machines.

s_seperation changes the the way left and right are split up. Afaik a higher value will increase the seperation whereas lower values will ... yes lower it! this is only needed when using desktop speakrs which are to close or to far away. Just use default when you have a headset.

s_mixahead and s_mixprestep have to do with prerendering the sound, lower values can give you an fps boost. If you put the values to low sound will distort and some sounds wont be played

r_subdivision has to do with rendering rounded objects, go on braundorf at main gate and watch the arch with differnt values. Afaik its capped at 20 in cb config

r_detailtextures were used by the first aimbots :) they used textures to aim on. dunno why they banned it

fireteamoverlay you just need to try out ingame, it changes position and size of the fireteambox

http://www.antman.info/wolf/cvar/
http://wolfwiki.anime.net/index.php/Client_cvar_list
http://www.rtcw.jolt.co.uk/content/enemy_territory/cmdcvarlist/
http://lizard.artun.ee/~korc/txt/Q3Tweak_3.html

should be all explained there

s_ - sound cvars, ask perfo.
r_finish - Force a call to glfinish every frame.

edit: explained well by overdrive.

seta cg_descriptiveText
This shows if "You killer xxxx" shows up on ur screen if i remember correctly

useless cvars, let them be default :P

google.com ;)