User blog comment:Lunagia/I Want Tactical Knife!!!/@comment-3182180-20140430120018/@comment-24317665-20140502152003

Method 1: Find players and go some easy ZS Season 1 map and just slowly rack up kills. Should take about a few days or so depending on how industrious you are

Method 2: Play Zombie Scenario

A: Lost City (Difficult to an extent but still somewhat doable. Only somewhat)

B: Double Gate (Somewhat more doable. Bonus rounds)

C: Trap (More bonus rounds but it becomes more difficult after R10-20~ ish)

Double Tactical Knife kills faster than Single so it'll get faster