How to bind a team chat message in CS:S
Type bind F6 "say_team Need backup" in your game console and F6 sends that message to your team only.
say_team
Sends a chat message only to your team.
say_team <message> Examples
bind F6 "say_team Need backup" Quick team message.
Arguments
messageRequired- Text to send.
What it does
Bound to U by default. Use it for callouts that the enemy should not read.
The game's own description: Display player message to team
Run it on your server
On a SLASHPLAY server, type it in the Console tab of the server page; the reply shows right under it. A value set there lasts until the server restarts. To keep it, add the line to cstrike/cfg/server.cfg. New to this? Start a CS:S server first.
Your own
CS:S server.
From $0.03 an hour, only while it runs. New accounts get 6 free tokens.