What about an SMG but larger?

Sorry, but I disagree here. The heavy drop-suit class is already a walking tank, you don't need bigger weapons. It is already over powered enough. You don't give a juggernaut class a bigger and better weapon. You do and everyone will use heavy drop-suit class. I already think that having such a powerful heavy/juggernaut drop-suit class will be the down fall to this game. Won't be long before everyone starts playing with that drop-suit class because you can't compete with it in any other drop-suit.

Sorry, but I disagree here. The heavy drop-suit class is already a walking tank, you don't need bigger weapons. It is already over powered enough. You don't give a juggernaut class a bigger and better weapon. You do and everyone will use heavy drop-suit class. I already think that having such a powerful heavy/juggernaut drop-suit class will be the down fall to this game. Won't be long before everyone starts playing with that drop-suit class because you can't compete with it in any other drop-suit.

Amarrian Flame Throwers for killing squads at close range.

Minmatar Flak Cannon. Lower damage forge gun but much more rapid firing and bigger magazine. Auto detonates near aircraft only.

it aint about bigger guns, its about different guns that do damage differently. a flamethrower would be close range powerhouse, but not at medium or long range. and the suit everyone plays is assault. if there was only 2 light weapons, everyone would say that the game needs more light weapons. so yes, give heavys more guns

heavys are already in possession of the strongest weapons in the game I can destroy anyones suit with an assault forge gun in one shot the rectiles are huge so its easy to hit and the weapon do not splash it is super precise with splash. Honestly if you think I am claiming op i am but that doesn't mean i want it changed ;) I love blowing away tanks and standard assault suits with dead precision.

Gallente Flame Throwers for killing squads at close range.

Minmatar Flak Cannon. Lower damage forge gun but much more rapid firing and bigger magazine. Auto detonates near aircraft only.

Yea, but games that are not well balanced don't last long. You like the class to be over powered so you can beast on people, but do you think you are the only one who wants to get a lot of kills? This is just proving what I said earlier about how this will be the reason this game is going to die out early. You either play with a specific class (heavy class) and do well or you chose another drop suit class and get owned by team of heavies. You can keep the beast gun that comes with the class cause that ain't the problem, it is the 650 armor that makes the class a juggernaut that is the problem. Shield takes long enough to drop on a suit, but shield and 650 armor. Come on guys. I really don't see how you can even defend this class when it is this ridiculous.

You obviously are ignoring the drawbacks of the heavy suit, or you are just spewing misinformation based on something you know nothing about.

Heavy Suit pros.
1. Highest armor allows it to take a beating.
2. Can use heavy weapons designed to devastate on the battlefield within their optimal ranges and roles.
3. Can use all weapon available, but not at the same time.

Heavy Suit cons.
1. Slowest movement can be easily caught/outrun by all other suits.
2. Slowest turn can be out strafed by any other suit that gets close.
3. Can't jump over most obstacles all other suits clear with ease.
4. Biggest scan profile makes it the easiest to detect.
5. Worst scan resolution makes it easier to for others to evade detection.
6. Lowest scan radius forces heavy to have to be closer than others to possibly detect hidden opponents.
7. No equipment slot. So no drop uplinks, no nano hives, no repair tools, no nano-needles, no remote explosives, etc.

I intentionally left out the things that could be equipped to any suit like armor reps, shield modules, etc.

I don't see the Heavy Suit as being the go to suit for all occasions. I think most players who try a heavy with weapons other than FG and HMG will find that it will actually limit them more than the assault suit.
Also, There are no classes in Dust. You can train into anything you want.

You left out the insane costs. Anger the spawn gods and your playing the next 10 matches in starter gear to make it up.(with an exo equiped of course kinda evens out the crap suit).

Come on now. If I am a walking tank, you think it matter that I am a little bit slow? These cons of yours are laughable. Slowest movement is counter by the ability for anyone to call in a vehicle. Slowest turn is countered in the options menu by increasing sensitivity. You talking about jumping over obstacles, yea that is "real" important (sarcasm). Scan simply doesn't matter because like I said, and like you stated, "they can take a beating." You surprising a heavy and shoot at him. Armor is so OP that you run out of bullets before damaging armor any at all. Then while you are reloading, he regenerate this shield that you worked so hard to shoot down, then blows you away with the minigun/LMG. Anything you say I can counter it bro. You know why, because I'm right man. Aye, keep coming with the lame excuses though because I want to prove to all of you that it is OP and this is the best way to do. #NEXT

Come on now. If I am a walking tank, you think it matter that I am a little bit slow? These cons of yours are laughable. Slowest movement is counter by the ability for anyone to call in a vehicle. Slowest turn is countered in the options menu by increasing sensitivity. You talking about jumping over obstacles, yea that is "real" important (sarcasm). Scan simply doesn't matter because like I said, and like you stated, "they can take a beating." You surprising a heavy and shoot at him. Armor is so OP that you run out of bullets before damaging armor any at all. Then while you are reloading, he regenerate this shield that you worked so hard to shoot down, then blows you away with the minigun/LMG. Anything you say I can counter it bro. You know why, because I'm right man. Aye, keep coming with the lame excuses though because I want to prove to all of you that it is OP and this is the best way to do. #NEXT