Just a small little thing on how to make the game start up really fast.
1. Go to your Ubisoft Game Launcher folder
C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher
D:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher
2. Go to games then Tom Clancy's Rainbow Six Siege then to Videos
3. Go into another folder called Startup
4. Delete everything in the startup folder, do NOT delete the startup folder itself or the game may break.
5. Launch the game and see how fast it starts up
6. When any update comes, it will not check the games files for ones already there, so you can permanently keep it so the game starts up really fast!
Enjoy this
-brent1000