In the majority of companies, trying out for intramural fieldball is an arduous process, involving walking (or chopping) down the hall to the PMO's door/board and signing up for it.
Fieldball is only played at two locations...US Naval Academy and Rahway State Prison. In 17 years at the USNAFD I hauled more brokendown chassis to 6th wing medical than any other sporting event at the USNA. Enjoy!