Too many children with it that can't compete are just banning players because they are not as good. There are not enough people playing this game anymore to keep allowing for the use of the tool. Please get rid of it.
My guess is that the majority of player that you think are hacking, are actually just good. MW3 is VAC secured, and while you might see an occasional hacker here and there the majority of people on MW3 these days play legitimately. The admin tool is just way too susceptible to be abused.