If people find you playing suspiciously, you will probably be reported and possibly banned/suspended; there is no hack that allows you to not get banned. The best way to avoid this is to not act suspiciously, i.e. if you are using chams, do NOT run straight into people, pretend to check corners and such. Also, if you're using no recoil/spread, use it on a gun which already has low recoil/spread and not a gun such as the G36E because it will be fairly obvious.