Here is a video link this shows you how to create test list using Visual studio and how to run the tests from command prompt. This can be used to create batch jobs and schedule them with in the build or to run every night.
Executing WebUI Tests With MSTest
This article was contributed by Rashmi Rajiv.

I can’t view the video when i click the link. Why?
Try this link instead. http://tv.telerik.com/watch/automated-testing-tools/webui-test-studio-executing-webui-tests-with-mstest