If that is true, Hampa is nos playing very fairly in my opinion, he is making everything to be bought with TC. I think the game would be awesome if we could upload our custom sounds for free. I now you can change them by changing the sounds, but i believe you can't put your own custom sound in the game. I think at least some sounds should be free...
Just saying, playing dirty for me is making sound lamer to make players buy more TC for sound items.
At leat I hope the sounds you buy are custom mp3 sounds and you buy only the item, the same that happens with textures.