There are people who would be able to give you much better advice than me on here... but I shall get the ball rolling...! Welcome to MOA Kai! First and foremost MOA is a place to have a laugh, get shot, shoot people, make friends, get shot, learn how to avoid being shot, behave like a kid in a sweet shop when you see all the shiny things and most importantly go home with a huge smile on your face!
As to what you need to start of with... here is a simple list to give you an idea, a sturdy set of boots, some form of tough clothing, I.e. a set of DPMs, new is never necessary as they are gonna get very dirty
a sense of humour and yourself 
MOA should be able to provide everything else you need to have a great day!
