Rayzorback-118

The Rayzorback-118 is a custom wonder weapon that is available from the mystery box on all maps in the Reapers Map Pack mod. It is also available via a very short Easter egg in Nightclub. It has two different variants to it. One is its Ray Gun Mark 2 or Boomhilda-like mode. The difference with the Rayzorback-118 being is that it's fully auto with this mode and has the same fire rate to that of the Razorback from Zetsubou No Shima or Black Ops 3 multiplayer.

If switch to the ALT mode, it will turn into another variant called "RZB-Sparker" that fires electric bolts that chain between nearby enemies.

It pack-a-punches into the "Epidemic Beacon" with an ALT name of the "EB-Electrocution". It receives a 50% damage boost in normal mode and chains to more enemies in the ALT mode as well as an ammo boost in both.

Trivia

 * The Rayzorback-118 is available through the mystery box on all maps in the Reapers Map Pack mod. It is also available through a very short shootable bottle easter egg on Nightclub.
 * The weapon's normal mode retains the fire rate and reload speed from the Razorback in Black Ops 3.