Zanguv, try leveling up more, as your characters are quiet low for level 15. get your tank around 20-30ish, and then use the best shotgun you can get with ur tank.
@Zanguv, i couldnt beat it untill i had a level 29 assassin (with the new weapon) due to 1 hit ko's with sniper/w blurrr to protect when u get low. although it takes time to get to this level, it's an easy win garuntee'd if you know what you're doing.
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