question

[sephiroth_pfo]

i have no idea howw to get a rank does it have something to do with challengemode?????
and im not some newbie who doesnt know about the game i just am not good at challenge mode or anything that isnt offline milti normal or offline single......

[Rogue100]

You complete all C-Mode stages with an overall time of less than 7 hours, and you get an S-Rank weapon!

[_Ted_]

You only get S-ranks for online Challange mode though. You get rare weapons for offline Challange mode.