specializations "Liberator"and"Leader"

#1

I can’t confirm these two effects.

  1. can both allow more damage to be done on the Predator’s side?
    Is the Leader effective for me?

I’ve tried several times with Private, and Liberator has no change in the damage it does to Predator.
Liader turned out to be ineffective on itself.

#2

Pigs should give Predator indigestion that causes him to be sluggish and gaseous

The flatulence will give him away