Actually i think the dshark has some value in pvp. More so than the Xan weapon does to be honest.
Here's my argument..
Against coon profs id swap Arbalest + Dshark (both cold damage, eats coon nicely, and faster AS than supernova) and the snare proc is nice considering we are the easiest profession to CC against, so having a "CC" tool of our own to prevent people from kiting away from us in mass pvp is really nice.
That said, i'm an SMG only soldier now