Valor is right, Marauder is called with "斧術士" in japanese version. (斧術士=Axe user)
Marauder guild in Limsa are pirates who use axe as their weapon, I'm meaning that Pirates aren't all of Axe Users.
But since pirates are the only axe user groups exist on Eorzea now, it's ok if we think that FFXIV's Axe user is pirates.


*Whether pirates or any others jobs, I still play "Marauder" as my main because I LIKE AXE!*


about one handed issue. If I remember correctly Marauder guild said that they won't use tiny axe like Botanist, right?
so if they will use one handed style, they may use Monkey Grip hehe >.<.
one more thing. Pirates in my memory are using musket and scimitar not axe ' w ' and if they smash their axe on their ship, it should be sunk...