Silent killer: No firing sound
+25% damage at close range
15% less accurate

I don't know. I got no real good ideas for Heavy shotguns.

[+]No noise made by shooting
[+]+10% more bullets per shot
[-]-20% less accurate
[-]-5% less damage

Pros:

+20% Damage to Mexicans and drug lords
On hit: build a 'coin toss' meter
When full, alt fire to flip a coin and either instantly kill or do no damage to an enemy, 50/50. They DID put it up after all.

Cons:

-40% Accuracy against people with the name Llewelyn

Let's omit the obvious silent killer part and go to the point: Lots of FPS have silenced weapons, and, in some of them, that reduces their damage output, but, that isn't a silencer, or at least doesn't look like one, but that's not what matters.
What matters is this: This thing should be more accurate, but deal less damage, A LOT less damage, maybe 30 or 40%, but the extra accuracy will make it useful for countering enemies at a really long range, something that you can't do with a Minigun, so:

=Pros
=Cons
=Neutral, Additional or whatever you call them

The (insert some other name here)
-35% pellet spread
S-K
-30/40% damage penalty

Imagine what you could do with this thing, kicking those camping sniper's azzes one by one.

Level XX Shotgun
Positives
+20% more accurate
Gain Assassin on kills and assists
Press "Reload" to activate Assasain
While in Assassin secondary fire grants mini crits for all weapons for 8 seconds
(you have to deal 175 damage points)
and +25% faster reload speed.

Damage Penalty per bullet shot ( Long range damage 2-25, medium 5-51, close 8-76
Pellet count between 8-12?
Critacal pellets 15/pellet, Mini crit pellets 6.9-10.4 )

Negatives:
- 17% clip size (5 from 6)
- 20% slower firing speed
- No headshots unless enemy is near death (example 1-25 hp)

Hidden stats:
! Shots are more quiet
! Headshot kills cause decapitation

Can selcet between styles: 1. Blood, 2. No Blood

Been looking at the Cleaners Carbine, Hitman's Heatmaker, Family's Business, and Shotgun to get these stats into a Silenced Shotgun form?