I did not honestly understand half of what you said. Perhaps due to the fact that I am not a fan of such games and therefore do not play them. But if my comprehension is close then I assume you are upset that people use the kill cam to judge from what direction the shot came from and thus figure out where you have chosen to hide in order to 'snipe/camp' for kills.
When in a match with such a feature simply relocate yourself after each kill (or each shot if you are shooting at a group) as that is how you would sensibly do it in the first place. Unless you have three or four people on your team sniping, then you take turns sniping to confuse the people.
If you are unwilling to go through that much effort, play the harder mode that eliminates the cam feature or put up with people utilizing the tool they were given for the purpose it was given to them. (As it sounds like it was put into the normal/easier mode in order to give people a chance to locate snipers/sneak attacks.)