Works best with Holly, but can work with other characters.
Use with TAC14 or 870 EXPRESS with either laser sights or long barrel.
Deck explanation below.
1. [Heavy Hitter] allows you to kill most common ridden with a punch in the face (except the ones with helmets on)
Combined with [Meth Head], allows for easier crowd control when you're swarmed.
2. You can then focus on upgrading your shotgun toolset.
I like to start with [Shell Carrier] and [Mag Coupler], with the option to boost my move speed using [Run Like Hell]
3. [Hunker Down] and [Quick Kill] are used to reduced your bullet spread which allows you to hit most (if not all) bullets to a single target.
With this, you can play shotgun at SMG range and deal massive damage. You can then further increase this with [Hyper-Focused], [Rolling Thunder], and [Shredder]
4. The last 5 cards are there to improve your reload speed with shotguns and build damage resistance.