A picnic in the park turned to tragedy when Frank Castle's family was shot by mobsters. The only survivor of the brutal execution, Castle decided to avenge his family by taking the law into his own hands.Marvel Source
Castle's extensive military training and total lack of remorse make him an extremely efficient vigilante. Armed with military-grade weaponry, Castle is prepared to continue his bloody work until every criminal alive has been punished.
Get Gear with + on (Proximity Mine) that will be ur main attk and Chemical Mines too but when u are low on spirit auto shoot with (Flechette Blast) Cast (Lock and Load) to gain a bit back as well when ever it's up. (Quick Escape) to dodge things around.
I used Arrowhead Artifact to gain spirit quick for each shots or Mark of Odinborn
Bullseye Artifact for crit chance and dmg on crit.
Lemuria Relic for life steal along with Life steal Costume Core
Costume Grade 1,2,3,4 u can go for crit chance and crit hit dmg or even attk speed higher attk speed u have the faster u can throw ur Mines.
And try to get gears with +HP for survivability or u can mix it up with +Spirit.