User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-947751-20121213070112/@comment-83.165.23.90-20121213152306

Imagine... you start with one weapon class, and you end with other really different xD

Dual swords -> Sword n Shield -> Lance -> Gunlance/Bug Staff -> Switch Axe/Hunting Horn -> Charge Axe/Hammer -> Great Sword

(I know, it's a bit unlogical, specially because it's difficult to upgrade a HH to a Hammer or a GL to a SA)