Carnage versus Fury versus Natasha - best midrange?

Overall it's the fury. Pretty map and bot dependent tho. If the reds have a lot of ancilots then not so much. If the spawn consists of rhinos and galahads then fury trident all the way. Zeus is fine, just a lot more work to kill shielded bots. As always, ymmv.

I picked the Fury, but I think Carnage is a close second. The better mobility plus the ancile help it deal with other midrangers effectively, and it's a much better Zeus platform than the fury is due to that mobility. If there is only one midranger on the battlefield, the Fury is almost strictly better due to the 50% increase in firepower over the carnage.

Picked up Natasha.

Fury would be the choice if you only want to hit knife fighters. Probably Trident.

Natasha would be the choice if you want to both hit knife fighters both deal with other midrangers. Probably Tridents + Molots.

Carnage would be the choice if you want to reach firing position quickly, have better chance of retreat and take some beacons. Probably Zeus.

I use Zeus Carnage over Trident Fury, as it is so much better on the short maps. Even on the long maps, Carnage gets more shot opportunities due to its mobility. I do miss the 3rd heavy hardpoint at times, but I think Carnage Zeus may out-DPM the Fury since it gets into position so much better. It just sucks facing lots of physical shields. But every build has its tradeoffs.

Carnage. More versatile and more useful on short maps.

I responded fury.

I would however put in a small plug for butch trident / zeus. Just because if gives different options dependent on target.

Despite my vote, you can use almost all the midrangers and you won't regret it, even the Raijin. Raijin does good on maps that Fury sucks at, and it acts like a Carnage on the other maps. In a 7 1/2 min game, my Raijin alone did ~550K of damage with 2x L10 Tridents. I think I might switch to Raijin once I level it and the Tridents a bit more, since the introduction of the Moon map. Maybe Zeus but I don't have any on my main account. 

I'm actually running a tripin leo as midranger, but no full satisfiedd whit him...i've just bought a Second trident, now i'm looking to try different built...

IMO the raijin is best suited as a sniper platform. Once i met a treb raijin spawned in the farm area, he climbed back to the cliffs and stayed there sniping freely. Our trebs get blocked and the cliff was very far away trident and zeuses will have trouble hitting it.