Lightning HZ-1 (Heavy Zombie-1) or Dada PP is a fictional assault rifle in Counter-Strike Online and a part of Lightning series.


A Heavy Zombie inspired-design assault rifle. A unique Heavy Zombie character is being fed with poison in a baby bottle which shoots poisonous bullets from the butt that is attached on the gun. Lightning HZ-1 holds 35 rounds for each magazine. It boasts its quick movement speed as well as a high damage.



  • Expensive
  • Purchasable only by cash points
  • Only available for a limited time


  • 3 ~ 4 shots are needed to kill a single enemy in classic match.
  • A 35 rounds of Lightning HZ-1 can deal 1050 ~ 2100 damage to zombies in Zombie mode.
  • A 35 rounds of Lightning HZ-1 can deal 5250 ~ 10500 damage to bosses in Scenario mode, noted that the firepower has been maxed.


Comparison to Lightning LZ-1


  • Higher damage (+3)
  • Higher clip size (+5)
  • Lower accuracy (-7%)
  • Higher recoil (+1%)
  • Heavier (+5%)

Release date

  • South Korea: 23 August 2012.
  • Taiwan/Hong Kong: 21 August 2012.
  • Japan: 22 August 2012.
  • Indonesia: 11 September 2013.
  • Singapore/Malaysia: 23 April 2014.
  • CSN:Z: 30 September 2015.


Heavyzg draw

Drawing sound

Heavyzg idle1

Idle sound

Heavyzg idle2



Firing sound

Heavyzg dryfire

Out of bullet sound

Heavyzg reload

Reloading sound

CSO China ZBGUNS (First Look)

CSO China ZBGUNS (First Look)


  • The first time this weapon was released in Indonesia, it had no firing and reloading sounds (also happen on Lightning LZ-1 and Daewoo K3). However, this was fixed in the later update.
  • In idle animation, it shows the SD Heavy Zombie makes a mad face to the player but later falls asleep.

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