Info can be found on Steam: steamcommunity.com/games/23209…
If you don't spend $10 a piece on the two previous mentioned weapons, have no fear... you get 3 free asset flips... honestly, I'm not trying to be a negative Nancy about the Halloween update but damn.. I'm disappointed. Asset flips? Really? Damn.
The three weapons are:
A Freezethrower but for medics.
A nailgun but for Swats.
A Magnum (with a shorter barrel) but for Support.