Good to know the most manly of weapons needs an almost equal time to reload compared to its shooting as the men that operate it. It takes a crew of airmen over 30 minutes to reload the Gatling cannon on the Warthog.
While the physical loading and unloading is done by machine, it takes a lot of work to move the ammunition around and make sure it loads and unloads correctly.
All I am going to say is that is a lot of work for only 30 seconds of fun.