"You can use Cheat Engine to change the RainbowSix.exe to RainbowSixGame.exe it won't start BE as you've edited memory for it
Cheat Engine:
Attach to RainbowSix.exe
Click Memory View
Up on Tools click Dissect Windows
Select R6Game
Change text to RainbowSixGame.exe"
I don't have R6Game in Dissect Windows.
imgur.com/Zn2w5W0.png
Any idea?