I was shopping at Walmart and was attacked by Walmart employees by managers orders. There is video. I barely made it out the store they tore my shirt.

Yes you would have a case against both the assailants as well as WalMart. Retain counsel to send Walmart a preservation of video evidence letter, so that the camera footage can be preserved. Also seek medical attention to document your injuries, and do not discuss your case with either the Walmart management or their insurance carrier. You should also file a police report immediately, so that the police can look at the video and prepare a report in accordance therewith.