From the reports I've heard from friends (and the number of army and ex-army people I've seen who are obsessed with golf) then yes, I would say that being obsessed with golf, if not good at it, would be a requirement for the army. Not necessarily a requirement for joining up, but you'd come out of it a golfer.

My friend Darkside's dad is ex-military. Poor Darkside gets abducted by the golf aliens every weekend unless he can prove he's got overwhelming homework (which, sadly for his free time, but happily for his non-golfing, has been a lot lately). Of the army/ex-army people I know, only my friend Dave has proven immune from the golf bug -- to show his deep and abiding feelings for the "sport", he takes golf balls to the shooting range. Some of his fellow officers looked like they were about to cry when he blew the thing to bits...