(adsbygoogle = window.adsbygoogle || []).push({}); Ok this was really hard but after ages of trying and searching i came across this easy guide

Step 1

Get EMP Grenades from mystery box. The box almost always spawns at the second bus stop, the Diner.

Step 2

Go to the fourth bus stop, the Bunker.

Step 3

Activate the power. "He" can only spawn where the thunderstorm is happening.

Step 4

Go outside, leave one zombie alive and wait until the thunderstorm is right above you. Kill the zombie to end the round.

Step 5

"He" looks like an electric zombie and has a 50% spawn chance in the area with the thunderstorm. He can only spawn in between rounds, not during rounds. Throw and EMP grenade at him.

He may attack you with shock attacks / electricity attacks. You may not die, that's all. You can also try to knife him or use other weapons. He can take a lot of damage though. The EMP Grenade will kill him instantly. If he does not spawn then play the next round, leave one zombie alive and kill that zombie once the thunderstorm is above you.

Enjoy thanks...:p