Yeah, I figured it out. I was missing the shotgun one, felt like an idiot after finding it. I got the sniper and rocket ones to level 5 without even trying. Guess my shotgun skills needed some work.
I'm in good shape though, I've earned over 300 point blank kills in about an hour down in the caustic caverns. Spiderants naturally rush you making them an easy candidate for the challenge.
EDIT: Aaaaand I'm done, it popped as soon as it hit level 5. I instantly got level 5 of the shotty sniper one too.
Last edited by xcrimsonlegendx; 10-09-2012 at 09:30 AM.