Spider Say by DarkArachnid
Allows you to bind custom messages with sounds to a key.
Wiz Pack by Daniel Neilsen (aka Wizard_TPG)
This pack contains a number of handy scripts.
Observer HUD by Daniel Neilsen (aka Wizard_TPG)
ObserverHUD is a HUD that only appears whilst in observer mode.
wizChat by Daniel Neilsen (aka Wizard_TPG)
WizChat Split Message Chat HUD.
World Stats by Daniel Neilsen (aka Wizard_TPG)
World Stats reports your stats at the end of each map to the world stat server.
up-two-date by Twostep
Twostep's Automatic Update Script
ubermute by Paul Tousignant
Chat spam filter
Uuber Target by Paul Tousignant
Adds a toggle for high and low arc fire targeting of ballistic weapons.
Time HUD by Paul Tousignant
Show the real clock time in a HUD.
Tracker by Paul Tousignant
Detailed history logging of who you've killed or been killed by in game.