You're right, I should have warned first, but when everyone is telling you to shut up, it shouldn't take an admin to tell you. Personally, I play with my headphones turned up pretty loud. (I can set them on the desk and still hear most stuff clearly, I like hearing people walking accross the map.

) When you're spamming "GO,GO,GO" non-stop for a couple rounds, it isn't helping people from camping, they're just turning they're volume down.
Next time you have a problem with campers, please tell an admin to take care of it, don't take it into you're own hands. My apologies though.