Thanks for your review.
The bullets ARE projectile based, you can even see them, however I think they are just moving too fast.
My controller is a modified version of a tutorial I found, I modified it to be more responsive and to handle slopes better.
About the rooms:
Initially I planned to make big rooms, however, for some reason I had a bug with the mesh collider very late in the game, and I didn't have the time to fix it so I just made as many room models as I could and manually assigned a box collider to each part.
Thank you so much for the response!