hello, I respect your opinion and I'm going to use it to clarify some things...
Any kind of hack is forbidden by any type of online games.
When detected using some type of hack, vip or public, the game administrator can suspend your account or even banish your hardware permanently.
The bighead / nutella / nif is a very old hack, and as a result this technique is already known to the developers, even though they do not fix the hack completely, it is easy for them to know that you are using it by various means.
Another factor is the amount of detection that your hardware (pc) has had, they can banish your hardware after exceeding that x amount of detections.
Unban
The battleye basically bans your HD (hard disk) using the true serial number of the HD, maybe in some cases and games, even changing the MAC, IP, Formatting, using VPN, no works
Note: When using hacks, you are putting your pc / hardware in danger and can be banned at any time.
How to fix hardware ban
In some cases, by changing the hard drive of your computer, the hardware ban is automatically aborted, if that does not work, try changing the MAC or even formatting windows.
Other points
If the intent was to get users banned, would not it be easier to let users hack and get the information to ban the hardware? Game companies choose to prevent hacking by creating regular patches, but this is not always functional because hours later there are other hacks working
Finishing
But if you have doubts, it is better not to use more hacks and play honestly, this will prevent you from being banned, using hack. Using hack/tools there is always the possibility of them banning your account and your hardware
This is just a conspiracy theory, as our friend @dalistylez said up there 