Improvised prison melee weapon to take down enemies in close quarters and steal their dogtags. This Knife is unlocked after completing Fang of the Underworld
Squads - Battlefield 4 Guide - IGN
Main Battle Tanks - Battlefield 4 Guide - IGN
Shank - Battlefield 4 Guide - IGN
Walkthrough - Battlefield 4 Guide - IGN
Battlefield 4 Beta - Battlefield 4 Guide - IGN
Battlefield 4 - Shawshank Achievement/Trophy Guide
Next-Gen Upgrades - Battlefield 4 Guide - IGN
Battlefield 4 single-player walkthrough – Kunlun Mountains (mission 5)
Tactical - Battlefield 4 Guide - IGN
Dive - Battlefield 4 Guide - IGN
Tashgar - Battlefield 4 Guide - IGN