Hello again! I got into the game and gave it a try, the core wave based section is pretty good, but I had to try it without having completed the tutorial. Either the skybox or the emissive materials on the gun is triggering Unreal's adaptive lighting and making the tutorial pitch black. I was only able to see the ammo counter and text a lot of the time I was in there. I'd suggest adding a ceiling and some lighting in there so that you can see what you're doing and learn the mechanics of the game :)