Diving Jobs In Florida

What differences are there between Army Divers and Navy Divers?
I understand that they get the same training down in Florida and both do pretty much the same jobs. All I want to know is the locations of where they dive.
I would expect Army Divers to dive in more rivers and murky water while Navy is probably off a coastline.
Or does it matter at all?
wow never knew they had army divers
Dead Scuba Diver in the Blue Hole by Diving Accidents