[bcrdukes]

There are no hard rules when it comes to the tomato sauce used. I prefer the use of Campbell's Tomato Soup in substitution ketcup simply because it doesn't have that sweet / sugary taste from ketchup; I absolutely dislike ketchup in foods. If I have some tomato paste, I'll use a small amount in the soup but otherwise, it isn't necessary.

I would encourage you to experiment with different recipes because ultimately, your sauce concoction should be something catered to your personal taste.