In my opinion there are either not enough bounties or the randomization engine is broken. It seems that 1 out of the five offered each day is the "kill 2 enemies with the fusion rifle 20 times". Now I think this is an OKAY bounty, but it is the only weapons based bounty i have received. You could equally have "get 20 head shot kills with the sniper rifle", "get 10 multi-kills with rockets", "kill 5 enemies in X second with the machine gun" Having only 1 weapon skill based bounty makes me dread using the weapon. At this point I only use it when the bounty is up, as i know i will be stuck using it for some time. I don't think this would be a hugely difficult fix and it would make game play much more enjoyable.