I dunno. Your playstyle and gun choices seems to indicate that you don't specialize in CQC, instead providing support to your teamates in the mid/long range. Your build seems very phaselock reliant, maybe you should drop blight phoenix and try to work suspension into your build. You probably have class mod bonus to ward so using the bee could be a good choice.
The Volcano is a good choice and easy to get if you moonshot farm the Warrior.
The Pimpernel is another easy to get sniper if you've got the DLC since it comes as a quest reward.
For a shotgun I like the Teeth of Terra on mine, though that might just be because I have one. I used to be a big fan of the Heartbreaker and I still like it but since I got the Terra shotgun I haven't looked back.