Adding more than a million bloodpoints with cheat engine
Just saying, this is incredibly stupid to do as it can be very easily detected. Only posting this to make it public as my last post seems to have been deleted.
So DBD has another store of bloodpoints that isn't capped at 1 million that is used legitimately to give players compensation over lost progress. It's called bonusexperience in your save, and your total experience is calculated by adding your bloodpoints with your bonusexperience.
With that being said, you can edit your bonusexperience by simply finding the offset of your bloodpoints and adding 0x4 to it. This is 4 in hexadecimal, so if you don't understand base 16 systems then I would recommend opening windows calculator, setting it to programmer mode and selecting the hex option. Then you can just paste the bloodpoint offset into there and add 4 to it, then copy the new value and put this new address into cheat engine.
This isn't automatically detected but you can be sure that as soon as a ticket is filed against you, you are 100% getting banned.
// Update : If you are wanting to edit your bloodpoints after going over the limit, you will have to find the correct offset by scanning for your current bloodpoints minus a million. For example if the game is showing that you have 20 million (20000000) you will need to scan for 19 million instead (19000000). Then you can edit this value, or set it to 0 to completely remove the bonus bloodpoints.