Ok. I managed to launch the game without issues. It works great so far (everything on high and textures on medium because of 6GB VRam)
If someone here will have "invisible" master chief issue and levels not loading properly. Try this solution I found on youtube comments
"I found a fix, when the window pops up logging you into your Xbox account and has the "Let's Go!" button, X out of that window every time it pops up, it'll pop up a few different times, almost every time you click something in the main menu, but it'll let you play if you X out of it."
It worked for me. Now i can play easily.