Both are good but i love the biohazard, poison + Controlled explosive shot (crown control) <3.

i tihnk umbra driver work better agaisnt jellys (MASS HORDE) ...but bio can poison..

These guns, maybe more than any other weapons that fit the same role in a loadout, are really well balanced to each other. The bio has the third shot so it does more damage straight up and allows a lot of versatility in herding gremlins or blind firing while kiting, even if the shot might miss its mark it's just floating in the air so long something will walk into it more often than not. Its charge shot and poison effect are fiddly, against something like a lichen colony they're great, but in big waves monsters you'd like to focus out because they're poisoned or have charges on them can get folded into the back of the crowd as you kite and fade away. The slow bullets can sometimes make it hard to shot select healers that stand in the middle of a room without getting a little closer than you may like. The umbra is a high damage per shot methodical weapon with ricochet, higher speed bullets, and an awesome all purpose charge attack. The damage is lower overall and you don't get poison and most gunners are going to want to stack asi and damage to pepper smaller shots rather than try to find any of the ctr that makes the charge attack really shine, especially if you're running something like a callahan in another slot that really has no use for ctr and you're trying to sacrifice damage trinkets for ctr trinkets. It really is just down to personal preference.

Biohazard has the same attack speed as the Driver i guess. I use Biohazard because:

- extremly fast charge with huge splash damage and poison
- jelly stack easly defeated
- mendors heal poisoned mobs -> killing em'
- poisoned mobs deal 50% less dmg to the party
- poisoned mobs get 10% more dmg from the party
- has a 3 clip -> allowing you to 2 clip and immediately shield or run faster (deals even more dps! - tested and confirmed)
- fixed the silkwing and mendor problem
- has the longest range of all guns, even longer than AP or Blitz Needle. Tested in trainings hall and confirmed. Very useful in some situations for shoting block XY
- simply has the greates name and attack sound ever :D

biohazard would be a lot better if its charged shot just detonated.
as it is, i can't get anywhere near the damage from biohazrard that i can from umbra driver, on single or multiple mobs.

well due the massiv splash, biohazard is better agains large groups. it also has a higher dps than the alchemer with 2 shot vs 1 shot... i would take biohazard if you got something back to kill gremlins, otherwise take alchemer thing.

The question wasn't whether or not it was easy to obtain. We are comparing Shadow guns. +1 to Biohazard.

I'm a gunner most of the time, and so is a buddy I do jelly runs with. I have a Biohazard, he has an Umbra Driver. We counted up the jellies that we killed on several runs to answer just this question, but ended up about even over the course of the experiment; I was slightly higher, but I also have a lot more gunning practice.

I personally prefer the Biohazard as both a jelly squisher and a general purpose gun for kiting because monsters love to run into those nice slow projectiles, or dodge multiple times (while not hitting me!) since they're threatened by it for longer. Great for herding menders into corners, especially, since they dodge the bullet twice in the same direction. I've even had some success with it in PVP (again, slow projectiles are a plus, since roaming Strikers love to run into stationary objects... see also Pulsar for a better version of this principle).

It's also a riot for solo play: squeeze off a couple charged shots into a group you're kiting, loose a flurry, watch the big boom make big numbers. For group play, it's less relevant... poison helps with some combats, I guess, but the charge is nearly impossible to resolve in a group of more than two. Its damage is quite solid, though.

Once you know how to hit internal ricochets with an alchemer, biohazard just seems too slow to me.

I'm feeling it too with the Polaris on non-turret targets, now that I have "almost a Nova Driver" (lv9 Prisma Driver)... :D

it sounds to me like you don't use both shots of the alchemer's clip.
two shots from an umbra driver into a herd of jellies causes massive damage (up to six hits + internal ricochet + possible duplicate ricochet on double hit.)
i watched your video demonstration of biohazard on the small jelly herd in aurora isles.
that is about the same speed that i could take that herd out with my biohazard but i can do it much faster with simple spam from my umbra driver.
and, the driver does so much damage that it doesn't need to cause poison.
when i'm soloing t3 arenas on that last part of the third level (the part with two gremlin healers, a herd of mechs and a random monster type) any 2 shots from my umbra driver into the center can kill one or both of those healers.
i never need to charge or worry about my charged shot getting blocked or dodged or hit a charged target or watch my reload time or anything like that.
i run around in a circle, spamming like a robot, and it works faster than biohazard.
in fact, i don't like killing gremlins with umbra or biohazard, because blitz does it better, but i still use my umbra driver on them before i use biohazard.
it's easier to hit dodging gremlins with biohazard's slow bullets, but umbra's huge damage still takes them out faster.
this is the impression i got from carrying biohazard and umbra at the same time.
any time i was using biohazard, it felt like it was taking too much time to get the job done.
i replaced biohazard in my fourth slot with a flourish, so i could cut grass.

i tried out the shadowtech once, it was pretty decent. when the catalyzer came out, i ditched it to get it, but still havent got a chance :P savng up tokens to get pulsar first. anyways, if you know how to use an alchemer, its a really good gun. the bounce seems kinda hard to aim, but once u start practicing, u can start hitting two targest at once. just a comment.

If you space your shots to dissipate right above the grass, any gun can destroy it, even the Catalyzer line. Also, because walls cause bullets to dissipate, you can just shoot at grass next to a wall and it will break.

And you might want to edit that before the mods do.

polaris explosions cut grass like a boss

Umbra Driver or Biohazard?

Answer: Sentenza.

Hear me out-- The Biohaz is fun as heck to use, but it's really only good against Jellies. Gremlins dodge way too much and the bullets are far to slow to connect most of the time, even if you anticipate where they're going to dodge to.

The Umbra Driver is also fantastic against mobs, but again, Gremlins have this weird tendency to "block" shots during their dodge animation. It's still a better option than the Biohaz, though.

With a Sentenza, you can herd the crowd wherever you want because of the fact that you can constantly keep them dodging, and even if they "block" a shot, you've got 5 more incoming. While it's not that great against Jellies, they're not exactly hard to deal with anyway-- I just use my Alchemer. The way I see it, Gremlins are the pain in my butt, so I have that weapon slot reserved for them, while Jellies can be dealt with by other means.

If you still refuse to use a Sent, though, go with an Umbra.