The bullet points beneath a one-line mission statement often servs as what?

That depends who you ask.

Put ten people who've written Vision and/or Mission Statements in a room and ask them, and you will likely get ten different answers.

Here's how we did it...

Our vision is a paragraph at the top describing who we are, and where we want to be.

Our mission statement is a list of bullet points below describing our values, how we will interact with customers, and how we will operate as a team.