Hate to disappoint you, but the Maggie is a Jakobs pistol. No elemental variants.
As for my method of farming, play through once to Tremendous Rex. Immediately after killing him turn around and jump off the dam. Usually spinning around and seeing if Rex dropped the Lyuda on my way down to death. Then you only have to replay the last 5 waves of Round 5.
It costs a lot of money to do that, especially when you get to the point where you have as much loot on the ground as I do. You see, what can be rendered is limited. The more loot you have, the less new stuff can be added. As it was anything that was white or green simply fell through the ground. As did all health. Each new blue item that dropped caused a green one to disappear which is why there are only a few greens left in the screenshot.
And that effects money drops from Rakks. Most of it falls through the ground.
When you first start farming like this it’s not a problem. You’ll actually make money for a while. But once enough loot is lying on the ground you reach a tipping point and the amount of money you can recover is less and less each run.
I started with $36 Million. I hit a high of $47 Million. By the time I quit I am now down to $12 Million. Not that money matters to me anymore. My SDUs were maxed out the day they increased the limit. I got nothing else to spend it on, and I can always farm Graveward for an easy $160K+ per run.
As far as multiplayer goes, no clue. I do my farming alone. Few people want to ignore all the loot on the ground and keep farming, and I don’t want to sit around while other people pick through every little thing before I can make my next run. It’s just faster for me to farm alone.