When modding at all, there's ALWAYS a chance of being banned. No matter what you do, it's possible and there is not really too much you can do to prevent it. Most games will more than likely not result in a ban (COD 4, WaW, MW2, Black ops). You could even probably get away with MW3, lol. Point is, there really isn't a way to not get banned. No matter what, there's always a chance.

When you go online you will 100% get console banned, But thats why you need to invest money into buying KV's, The KV is what gets you banned and you just replace that to unban yourself, Stealth doesnt do shit to unban you, That service is to make you go online and to make sure your KVs last weeks.

EDIT: Sorry the KV isnt what gets you banned its the modding you do any form of it and depending on what you do it shortens the lifespan of the KV

There is no possible way for going online with a rgh and not getting banned. Stealth allows you to play on their severs and does not guarantee that you on not going to get banned.