This game is shooter, partly, and for shooter is important to have good collisions. I found invisible collisions and some obstacles have collisions what not to fit the main mesh. Its imposoble to shoot or cast through invisible objects and some invisible collisions block your run/walk.
Making collisions it most easiest thing in 3d modeling. I know what i say, here example of my work
https://www.artstation.com/artwork/Ny5gXg
https://www.artstation.com/artwork/g0JVLe
Also other bugs
the mutant pushed me into his room and he locked me there
stuck on slide, but i somehow got out of there
and I just got stuck on the Ogryn, I can’t move there
Also was few times when Beast of Nurgle push me outside wall after he eat me and die
