I agree about reducing the spread on Heavy weapons. Their ability to sustain fire makes them great for suppression but sadly they lack any accuracy so they are more of an annoyance than a true threat in most cases.
To be honest I used to advocate for the Bulpdaun due to its better than average accuracy at medium range. After playing a lot more though I find that the hip fire stability of the Kross and CARB-9 to be the superior options, especially as you can equip both of those with an SMG Drum Mag attachment. There is honestly very little reward for using ADS in Brink other than sniping or using a COGA scope on a high accuracy weapon. Perhaps headshot multipliers should only work when you are aiming down your sight?
The other fun place to use the AGL is at the start of the second portion of Aquarium as the Resistance. Watching the Security continue to try and push their escort down that tiny hallway while continually to knock them down is hilarious. To make matter worse you can stand behind the counter and refill using the Command Post without every having to walk around to the front of it.
I do love me the Bulpdaun, 2nd favorite SMG without a doubt. I'd probably place the Kross and the Galactic in the same league, rather than the Carb... The Galactic is only marginally weaker and a little less accurate, but has great stability and the best capacity of all SMGs. I often find myself swapping between the two as my close/mid-range SMGs. I still ADS though, and prefer to be able to fight at mid-range, so I don't dare bother with SMG drum mags because the spread difference is certainly noticeable.
But I take back what I said about the Maximus, AKA the gun "that looks like a SAW", it's seemingly more accurate and stable than the Rhett, but suffers worse spread increase. I used it just now around the opening in that counter you mentioned for using the EZ-Nade defending Aquarium, and it was doing an insane job of crowd-control. Firing 5-15-bullet-volleys, I was letting the recoil drag me through the group of Security, picking up a headshot here and kill there... if I didn't finish somebody off, then fire from friendlies did. Admittedly, it wasn't so effective at that range with less enemies to hit, like if one or two guys walked in... but I remedied that by just getting closer.
The Maximus is a [censored] beast and one of my new favourite weapons. Lays waste to crowds at close/mid-range, and dominates in face-offs in CQC.
All I want is for the heavy to be FEARED. Like in tf2.
Hell... I know if I come across a Heavy down a dark, lonely corridor, regardless of SP or MP, I'm certainly not thinking "OH GOODIE WHAT A GREAT PLACE TO BE".