https://www.reddit.com/r/halo/comments/rcecu3/halo_infinite_campaign_graphic_glitch_make_the/
There is a serious glitch in the PC version of Halo Infinite when High Res Textures are enables where objects blend into the map and you cannot see anything! Turning off these textures makes the game far less visually impressive and you shouldn’t have to uninstall 7GB worth of content just to get a normal match! Please fix or patch this issue 343i!