DP-12 is a maintank SG with a passive that causes her to gain HP Shields whenver she reloads (plus reducing Damage taken for self (damage reduction is calculated after Armor applies), as well as by units behind her, but the latter is not often relevant), as well as a low ICD Skill that causes her to immediately reload.

Her base Armor is good at 23 and otherwise there's not really too much special about her. She's a pretty good SG if you need HP Shields in addition to Armor but has nothing remarkable by modern standards.

Check the mod priority guide: https://docs.google.com/spreadsheets/d/1ty239kyJbBs1sLhTo1JvSWuN0mIJsK1nwVdI6OLLtXo/view?rm=minimal

The enemies are up against the wall, and DP-12 is the f***ing wall!

DP-12 started as a fairly good SG that used her reloads to increase her tankiness. Now with her Neural Upgrade, she sets a new standard for tanky SGs. She will just stand there menacingly, endlessly reloading her gun, and the enemies can not do much about it.

By default, DP-12 MOD is already one of the tankiest SGs before any skills. With her MOD 3, Special Equipment, and Flash Shells, she has 37 Armor and -4 Damage Reduction. Things only get more crazy when you consider her new Skill 2 Shattered Illusion. With this skill, every reload grants her a 40% Rate of Fire Boost, 5 points of Armor, and a HP shield matching 50% of her current Armor stat. The most crazy part of this is that the Armor boost stacks infinitely and each stack lasts a staggering 99 seconds. Her Rate of Fire boost helps her to empty her magazine faster and get to the next reload too. You can also opt for Birdshot on her instead of Flash Shells to further aid with this, while keeping the ability to negate damage entirely from the SPEQ’s -1 Damage Reduction.

In long fights, this skill gives her up to roughly 20 stacks on average for a whopping boost of 100 Armor. With this on top of the HP shields and additional damage reduction she gets from both Skill 1 and Skill 2, it’s easy to see why DP-12’s tankiness far exceeds that of any other shotgun. Other benefits she gets from her upgrade include enemy knockback on reload (a new effect on Skill 1) and improved tiles.

DP-12 at MOD3 is a very easy recommendation. MOD2 and MOD1 both still come with nice upgrades, but the benefits of MOD3 cannot be understated. Generally, it is only recommended to stay below MOD3 if you happen to be low on resources at the current time. Otherwise, get her to MOD3 and let her become the true impenetrable wall she is destined to be.