If memory serves me, you’re playing as Maya, right? And you haven’t reached UVHM yet, right? If this is the case, then my advice is to go for Maggie. Slag isn’t necessary in TVHM or NVHM, so this is a great opportunity to try it out. But for UVHM… What the others said! Once you reach UVHM, slag is a must. And even if you’re perfectly fine using only Scorn and Ruin for slagging, it takes some time before you reach the level where you can use both. That’s when the Slagga makes most sense on Maya.
Chulainn or Landscaper? Chulainn is a really powerful SMG, and it would be on most top gear lists, if it wasn’t for one thing… It will slag you when you wield it. Landscaper… Apparently, a handful of players actually like this gun, but most of us poke fun of it. Let’s just leave it at that!
One gun that often gets overlooked in this mission series is the Triquetra. A very good Jakobs shotgun that works very well on Maya.