Modding Help Is there a way to make there is a chance of projectile not appearing in actionOnReap?

Normally, we'd use this to make something appears after a projectile dies out:

Code:

  "actionOnReap" : [
    {
      "action" : "projectile",
      "type" : "firepart2",
      "fuzzAngle" : 0,
      "inheritDamageFactor" : 0.0,
      "angleAdjust" : 35
    }
  ]

But, that way, firepart2 is guaranteed to appear after the projectile dies out. I want to make it so that there is a probability that firepart doesn't appear and nothing happens after the projectile dies out. Would it be possible?

I appreciate the help!