Good lord, I leave this for one day and...ohh man, so many things to point out...alright, let's get started...
@DirtySHISN0 - Throw mechanics already provide this and is alot simpler. Just don't think its necessary to muck with Lash is all. Aside from interrupting with a stun animation, nothing can slow the Banshee jump that I'm aware of.
@DirtySHISN0 & Metal Vile - As for the Krogan Flechette SMG, I agree with Lokiwithrope that we don't have enough burst SMGs, so perhaps an upscaled Shuriken. I like the idea Metal Vile had on the matter, but I don't think SMGs have a damage drop over distance mechanic. Honestly, it makes more sense for it to be of krogan design rather than batarian, but I really wouldn't care either way. I agree with Metal Vile that it would probably have massive recoil, highest SMG damage per shot, penetrates Guardian Shield, tiny clip size, eats the whole thing in one push of a button (extra rounds from Heat Sink mod included). Make the Hurricane look like a warm tropical breeze. Can't hit the broad side of a barn beyond close range. Turian Soldier might get some nice, obscene use out of it. Also, we've been over the 'ammo power by default' business before, DirtySHISN0.
@Hypertion - You want a long range Reegar? I'm thinking no. I agree that the stats would be crazy overpowered. 400 ROF would be about 6.6 repeating shots per second. No way a shotgun would have that kind of rate of fire reasonably(that isn't the Reegar). What I think might be a good compromise would be to make it something like a full auto Talon with scaled down damage to make up for its rate of fire. Less burst, but higher rate of fire and DPS. Even give it a similar revolver mechanism/look. Tricky to balance though.
On the note of batarian shotguns, why do people keep asking for this but not ask for the Raider AT-12? I got the Valkyrie instead (no regrets), but I wouldn't mind playing around with it in multiplayer. Should be with the Valkyrie as two additional promotional N7 weapons in Commendation packs (and Victory Packs, if the wording is correct, not sure I buy that though).
@MIA115 - Don't think the GPS was around during the Geth Rebellion. In the e-mail from TIM, he seemed to imply its of newer construction(read: 'higher tech'). Also, not sure if a noted Geth apologist (Zaal'Koris) would be thrilled to have an anti-geth pistol named for his family, though I could appreciate the humor of it. It would be a bit sounder, fluff wise at least, for it to be named for Han'Gerrel. Honestly though, it'd make more sense for the whole idea to be a geth design in the first place to kill two birds with one stone. Over all though, fine idea, though we discussed the chance on hit thing previously in the thread. Not entirely sure how doable it is, but I suppose the mechanic could be there. It'd be better just to make it like a GPS in pistol form, so the stagger comes from the impact of the hit like the GPS. Not exactly inspired, but alot more feasible.
@EmoPyroNecrosis - Oh man...where do I start?
1) That SMG is...no. RoF of the Geth Plasma SMG, damage like a Raptor, recoil like the Geth Pulse Rifle, and armor piercing? All in an SMG which can have ultra-light materials mod (provided its working) negate the weight issue? Who would need to use anything else? That would be INSANELY overpowered, and not even a little reasonable.
2) Hackett Revolver is an amusing idea, but charged rounds becoming explosive doesn't really make sense considering how Mass Effect weapons work. It either fires specialized rounds requiring mini-fabricators, or it fires slugs. Really, it'd just be another Paladin/Carnifex, so I don't quite think it'd fit. Maybe if it had damage like the Carnifex, clip capacity like the Paladin, and base line armor pen by default, it could be interesting. Still, too much like the Paladin/Carnifex.
3) Elcor Tanker Cannon - A gun should never stagnate like that, or there's no enjoyment in getting an upgrade. As for it being a sniper rifle rocket launcher, I have no inherent problem with that so long as Infiltrators don't turn it into a Missile Launcher with Tac Cloak. Otherwise its basically a slower but heftier Krysae. Don't think the charge up bit is necessary though, just make it shoot like the Javelin to make it even more cumbersome, especially if that charge up time can be increased to like 3 seconds before shooting. Considering the raw area damage potential, I think that's fair.
4) The Phyre Stream would literally be the Reegar. Not sure if there's a damage drop over range mechanism for assault rifles, so the flame would reach forever, spreading into a wider and wider cone. Really, though, its just the Reegar, no need for it.
@3XT3RM1N4TUS - Aside from balls to chin as an injoke, I don't think the game supports a mechanism for shooting multiple shots and then charging for one big one. The easiest way to address this would be to make it functionally similar to the Arc Pistol, and just have the three shots cluster together when charged(maybe a charge for accuracy mechanic). At that point, it would be capable of doing far more damage if simply because you could place all three of the slugs fired on the head, or on a single target. Think, though, it would be not terribly good as a shotgun without a decent spread with only three projectiles. Only reason the GPS uses three effectively is that they track. Others shoot eight for sheer area saturation.
Okay, think that covers everything. Now, if you don't mind, I'm going to go calibrate this Quarian Arc Rifle (and eventually post something more on it).