Please test and update which work etc. and post in this thread.
default_systemlink, createcam, createpaths - Allows you to change teams
createfx - Same as UFO mode
default_mp_gamesettings - Allows you to use HUD in Hardcore
default_splitscreen - change team, hud in hardcore and custom class in old school
slowmo - does what it says
Rest of the List:
| | ac130.cfg
| | antfarmcodmw1.cfg
| | antfarmcodmw2.cfg
| | atvi_scr.cfg
| | autoexec_dev.cfg
| | autoexec_dev_mp.cfg
| | avatar.cfg
| | avatar_createfx.cfg
| | avatar_dev.cfg
| | avatar_mp.cfg
| | ben.cfg
| | brent.cfg
| | brent_dev.cfg
| | brent_mp.cfg
| | buttons_default_alt.cfg
| | buttons_experimental_alt.cfg
| | buttons_lefty_alt.cfg
| | cam.cfg
| | cdkey.reg
| | chad.cfg
| | chad_mp.cfg
| | cobra_controls1.cfg
| | cobra_controls2.cfg
| | configure.cfg
| | configure.csv
| | configure_mp.cfg
| | configure_mp.csv
| | coopmaps.arena
| | coop_arcademode.cfg
| | coversys.cfg
| | createcam.cfg
| | createfx.cfg
| | createpaths.cfg
| | default_480p.cfg
| | default_720p.cfg
| | default_filter.cfg
| | default_mp_gamesettings.cfg
| | default_splitscreen.cfg
| | default_statversion.cfg
| | default_systemlink.cfg
| | default_xboxlive.cfg
| | demo.cfg
| | depth.cfg
| | depth_off.cfg
| | developer.cfg
| | developer_mp.cfg
| | devgui_aimassist.cfg
| | devgui_flamethrower.cfg
| | devgui_fx.cfg
| | devgui_main.cfg
| | devgui_maps_mp.cfg
| | devgui_maps_sp.cfg
| | devgui_modelpreviewer.cfg
| | devgui_renderer.cfg
| | devgui_scriptart.cfg
| | devgui_visibility.cfg
| | devgui_wii.cfg
| | devgui_xenon.cfg
| | dko5.cfg
| | dvar_defaults.cfg
| | dvorak.cfg
| | earl.cfg
| | enable_art.cfg
| | fileSysCheck.cfg
| | frank.cfg
| | geoff.cfg
| | gilman.cfg
| | grigsby.cfg
| | grigsby_mp.cfg
| | hardcore_disable.cfg
| | hardcore_settings.cfg
| | hex.cfg
| | jake.cfg
| | jake_mp.cfg
| | jason.cfg
| | jiesang.cfg
| | joel.cfg
| | joelg.cfg
| | jon.cfg
| | kevinpai.cfg
| | language.cfg
| | linda.cfg
| | mark.cfg
| | massey.cfg
| | miked.cfg
| | minimap.cfg
| | mo.cfg
| | mofo.cfg lol
| | nate.cfg
| | ned.cfg
| | ned_mp.cfg
| | oldschool_disable.cfg
| | oldschool_settings.cfg
| | openautomate.cfg
| | options_graphics.cfg
| | options_graphics_set.cfg
| | playlists.info
| | popman.cfg
| | preston.cfg
| | propman.cfg
| | ps3.cfg
| | psource.cfg
| | ragdoll.cfg
| | replay.cfg
| | robotg.cfg
| | rodney.cfg
| | rodney_mp.cfg
| | roger.cfg
| | safemode.cfg
| | safemode_mp.cfg
| | safemode_mp_server.cfg
| | screenshot.cfg
| | screenshot_gun.cfg
| | screenshot_off.cfg
| | scripter.cfg
| | server_ctf.cfg
| | server_dm.cfg
| | server_dom.cfg
| | server_hq.cfg
| | server_map.cfg
| | server_sab.cfg
| | server_sd.cfg
| | server_tdm.cfg
| | server_war.cfg
| | slaypiece.cfg
| | slowmo.cfg
| | stagger.cfg
| | stevefu.cfg
| | stevefu_dev.cfg
| | stryker1on1.cfg
| | test.cfg
| | theendlesswinter.cfg
| | theendlesswinter_mp.cfg
| | thumbstick_default.cfg
| | thumbstick_legacy.cfg
| | thumbstick_legacysouthpaw.cfg
| | thumbstick_southpaw.cfg
| | viewSensitivity_high.cfg
| | viewSensitivity_low.cfg
| | viewSensitivity_med.cfg
| | viewSensitivity_ultra.cfg
| | winyan.cfg
| | yer.cfg
| | zach.cfg
| | zied.cfg
default_systemlink, createcam, createpaths - Allows you to change teams
createfx - Same as UFO mode
default_mp_gamesettings - Allows you to use HUD in Hardcore
default_splitscreen - change team, hud in hardcore and custom class in old school
slowmo - does what it says
Rest of the List:
| | ac130.cfg
| | antfarmcodmw1.cfg
| | antfarmcodmw2.cfg
| | atvi_scr.cfg
| | autoexec_dev.cfg
| | autoexec_dev_mp.cfg
| | avatar.cfg
| | avatar_createfx.cfg
| | avatar_dev.cfg
| | avatar_mp.cfg
| | ben.cfg
| | brent.cfg
| | brent_dev.cfg
| | brent_mp.cfg
| | buttons_default_alt.cfg
| | buttons_experimental_alt.cfg
| | buttons_lefty_alt.cfg
| | cam.cfg
| | cdkey.reg
| | chad.cfg
| | chad_mp.cfg
| | cobra_controls1.cfg
| | cobra_controls2.cfg
| | configure.cfg
| | configure.csv
| | configure_mp.cfg
| | configure_mp.csv
| | coopmaps.arena
| | coop_arcademode.cfg
| | coversys.cfg
| | createcam.cfg
| | createfx.cfg
| | createpaths.cfg
| | default_480p.cfg
| | default_720p.cfg
| | default_filter.cfg
| | default_mp_gamesettings.cfg
| | default_splitscreen.cfg
| | default_statversion.cfg
| | default_systemlink.cfg
| | default_xboxlive.cfg
| | demo.cfg
| | depth.cfg
| | depth_off.cfg
| | developer.cfg
| | developer_mp.cfg
| | devgui_aimassist.cfg
| | devgui_flamethrower.cfg
| | devgui_fx.cfg
| | devgui_main.cfg
| | devgui_maps_mp.cfg
| | devgui_maps_sp.cfg
| | devgui_modelpreviewer.cfg
| | devgui_renderer.cfg
| | devgui_scriptart.cfg
| | devgui_visibility.cfg
| | devgui_wii.cfg
| | devgui_xenon.cfg
| | dko5.cfg
| | dvar_defaults.cfg
| | dvorak.cfg
| | earl.cfg
| | enable_art.cfg
| | fileSysCheck.cfg
| | frank.cfg
| | geoff.cfg
| | gilman.cfg
| | grigsby.cfg
| | grigsby_mp.cfg
| | hardcore_disable.cfg
| | hardcore_settings.cfg
| | hex.cfg
| | jake.cfg
| | jake_mp.cfg
| | jason.cfg
| | jiesang.cfg
| | joel.cfg
| | joelg.cfg
| | jon.cfg
| | kevinpai.cfg
| | language.cfg
| | linda.cfg
| | mark.cfg
| | massey.cfg
| | miked.cfg
| | minimap.cfg
| | mo.cfg
| | mofo.cfg lol
| | nate.cfg
| | ned.cfg
| | ned_mp.cfg
| | oldschool_disable.cfg
| | oldschool_settings.cfg
| | openautomate.cfg
| | options_graphics.cfg
| | options_graphics_set.cfg
| | playlists.info
| | popman.cfg
| | preston.cfg
| | propman.cfg
| | ps3.cfg
| | psource.cfg
| | ragdoll.cfg
| | replay.cfg
| | robotg.cfg
| | rodney.cfg
| | rodney_mp.cfg
| | roger.cfg
| | safemode.cfg
| | safemode_mp.cfg
| | safemode_mp_server.cfg
| | screenshot.cfg
| | screenshot_gun.cfg
| | screenshot_off.cfg
| | scripter.cfg
| | server_ctf.cfg
| | server_dm.cfg
| | server_dom.cfg
| | server_hq.cfg
| | server_map.cfg
| | server_sab.cfg
| | server_sd.cfg
| | server_tdm.cfg
| | server_war.cfg
| | slaypiece.cfg
| | slowmo.cfg
| | stagger.cfg
| | stevefu.cfg
| | stevefu_dev.cfg
| | stryker1on1.cfg
| | test.cfg
| | theendlesswinter.cfg
| | theendlesswinter_mp.cfg
| | thumbstick_default.cfg
| | thumbstick_legacy.cfg
| | thumbstick_legacysouthpaw.cfg
| | thumbstick_southpaw.cfg
| | viewSensitivity_high.cfg
| | viewSensitivity_low.cfg
| | viewSensitivity_med.cfg
| | viewSensitivity_ultra.cfg
| | winyan.cfg
| | yer.cfg
| | zach.cfg
| | zied.cfg