U.S Army Military Police?

What are the deployment lengths for military police officers? Where are all of the military police bases located at and can you request where you would like to be stationed at, if so, how does that work? As a military police officer, could you permanently become someone who trains soldiers of other military's and police forces as well as our own military police personnel? Can high ranking military police officers (Major and up) be able to have a lot of field work, if not, is there anything you can do to get more?