To reduce your chances of getting kicked while using an aimbot of some sort, you need to take some measures.
1) I generally follow a 1-bot 1-kill rule where for every kill i make with the aimbot, I try to actually aim and kill the next dude. Works only for aimbots with hotkeys and stuff.
2) Use headshot common weapons!!! E.g.
-MP5 <<< this is a biggie
-PP19 <<< this is also a biggie
-M24 (You HAVE to get headshots)
etc etc etc... and then after getting a few headshots say stuff like "wow... MP5 is headshot monster"
Also some common ways to repel accusations like "omg dude ur aimbotting"
-"Dude, get some skill."
-"I put my sensitivity on 40. 'nuff said"
-"practice, man, practice!!!"
-"dam... if dis is wat u call "aimbotting" u should see me in CSS"
-"stop whining, u'll just get kicked"
-"nexon patched the latest hacks"
-"dude im not from brazil"
-"if i relly aimbotted u guys were DEAD 5 mins ago"
and so on and so on... be creative