Mostly every hack , changes a ADDRESS'S VALUE with in combat arms, how ever a ADDRESS'S VALUE In combat arms, can change without a hack......Now obliviously if it changes without a hack you wouldn't get kicked......but how would they detect if your using a hack...or if your not?......
.....What I believe is....once a value is changed it searches, you computers processes that are currently running (Basically checks for components with in a program that allows it to run), and if it picks up a process that has memory searching components, and access to the address that recently changed...then it would kick you....otherwise you would stay online...Now if the hack's Process gets closed before it detects it...then maybe it wouldn't kick you..
EDIT :
Yea your right...So once the hack changes the process..it should be closed immediately, and automatically