Tournament stuff changes every week.
it doesn't disapppear once tournament is over. once u get it, u keep it. i got the croc stuff a while ago. u get it if u get silver ranking in the tournament. the same with the revolution shirt and guns. i still have my revolution shirt and guns......so where is the croc stuff?
Everything but the Djinn resets every week. So you gotta keep playing the tourny to keep those shirts and guns.
Keeping those shirts and gun skins aren't worth it. Sometimes the tournament can get really frustrating if you take it seriously.