Okay so my issue is this, my game camera is facing toward the background that I want. However, the background is too small, or if I get the background zoomed up and bigger, of course it loses quality and looks pretty bad.
Another annoyance is that when I press to “play”, all I get is a weird picture of my background in horrible quality after zooming it up. How can I make sure that the gameplay stays fixed on the background and isn’t out of resolution as what I’m working with in my scene?
Click on your main camera to open it up in the Inspector view. You can the size of the camera up and down so that it changes how much of the scene is shown.
In the scene view, zoom in so that your background takes up most of your screen (so it’s easier to design and work with). Then take your camera and put its tightly around your background image.
Now when you hit play, you should only see the image and not the default blue background.
if your background lose quality with zoom, then may be you need one background, that is bigger 
Try one background with 1920*1080 (or what you have).
Be sure, that you have set right MaxSize in unity inspector, when you chose your background. I think it is 1024 default, make it bigger as your backgrond (so 2048 or 4096).
