here is a video from the french Modder Imcsx. I made already a topic with a text tutorial but here is a video how to do it. You dont need the sound (he speaks french) but just see the video
The Online Stats are located into the Stats Entry Point.
I've found this without Debugger , because when i have found this (3 months ago) i didn't known the method for RTE Editing, i have reported with the XEX Function in IDA.
All as the Score , Level and More are in Little Endian.
The Little Endian is as the Big Endian (Used in IDA when you decompiled an ELF / XEX ) but all bytes are reversed.
If you have this in Big Endian : 0x00020a44 (133700) , in Little Endian it's : 0x440a0200.
The prestige in COD is a Byte. Exemple the prestige 10 is 0x0A , the Prestige 20 is 0x14.
I'll show an exemple , for the level, if Your Total XP is 1746200 (Rank 80), You Get 0x18A51A00 in Little Endian.