Submachine guns, Why? Options

[Smash]

I rarely have a toon that utilises SMGs. In every edition they just seem like inferior assault rifles.

What I have always found frustrating is that in every edition (and it seems in 5th Ed as well, but hopefully I've just missed it) the writers tend to do a bad job at defining all the little nuances for all the classes of weapons.

For instance. How many hands does a pistol use? One right? How do we know? Probably some fluff text somewhere or we’re assuming they work the same as real life.

SMGs seem to sit in this void between everything. Bigger than a pistol, smaller than a rifle. What’s it for? Can I use it one-handed? Then why use a pistol, is there a penalty, is the pistol more concealable? Are they easier to use indoors than Rifles? This would make sense, but how does this work mechanically?

Some of this stuff is explained in the SMG description some of it isn’t, bits and pieces are probably sprinkled through the skills and other sections.

To me the weapons chapter needs a stat block for what weapons types share. Eg:

SMG
Skill: Automatics
Hands required: 2 (Can be fired in one at -2, -1 accuracy)
Concealability: -2 dice to palming check
Attachments allowed: Barrel, top, stock
Whatever else I’m forgetting.

So far all I can see SMGs being good for is for versatility why being a combat biker. Pretty niche weapon though…….