User blog comment:Crazy sam10/Origin weapon menu icons found in game files/@comment-5889287-20130825061303/@comment-4007629-20130825191435

Well... maybe the water staff isn't water, but instead ice? It looks more like ice than water in my opinion. Lightning staff perhaps mimicking the Wunderwaffe, Fire Staff  mimicking the MG2 Flamethrower, Water/Ice mimicking the Winter's Howl, and the Air staff mimicking one of the air wonder weapons? Just speculation...