Watch Your Step (Codex Entry)

Watch Your Step is a Codex Entry featured in Battlefield 1. It is unlocked upon obtaining 10 kills with Tripwire Bombs.

Transcript
''A small, devious device could transform a regular mortar shell into a tripwire bomb by exchanging the tip of the fuse for a string with a hook on it. During various stages of the conflict, the armies of the First World War made effective use of booby traps during controlled retreats, by rigging potential loot with deadly traps in various forms. Tripwire-activated hand grenades rigged in barbed wire saw widespread use. These could be used as an early warning system for raiding patrols or infantry attacks.''