Insta-Kill

Insta-Kill is a power-up found in every Nazi Zombies map. It lasts for 30 seconds and enables every player to kill any zombie in one hit until the power-up runs out. Insta-Kill's icon is a skull. The demonic announcer will say "Insta-Kill" (Excluding Nacht Der Untoten) once someone gets it. Once the power-up is gone, a sound effect that sounds like something vanishing will be audible to everyone in the game. Many players prefer to use a knife or grenades when Insta-Kill is running so they do not waste ammo. If it is dropped by a dead zombie, players will try to get it once they get the chance or one player runs for it while others cover him/her

Tips
Note: These tips are useful and can be used on every Nazi Zombies map.
 * Try to get it as soon as you have the chance.
 * Use your knife so you don't waste ammo or grenades.
 * Try not to stay in the same area and wait for zombies if playing on a big map ([Shi No Numa]], Der Riese). Going out a little bit will grant you and other players more kills and more points.