How to remove that annoying radio message?

sv_friendlyfire

ok so it's impossible, I see ;-;

Deep Packet Inspection in firewall that would deny the packet.

@ VADemon:

On top of the difficulty that would require to own your own server

replace the "Teammate down" sfx with an empty sfx.
The only solution I could think of.

as an addition of what : SkullFace said, you could rename the file, it makes your job easier

@ Baloon: By renaming it, wouldn't it cause to CS2D not boot? Just because CS2D will detect that file does not exist.

Ok, so I need to make lua which opens cmd in user's pc and replace tem mat down sfx with an empty one. Should be easy