This mod gives you ability to enjoy Niko Bellic in GTA V as if you were playing GTA IV

Niko speaks during
Freeroam obviously
Golf minigame
Darts minigame
Strip club
Picking up hookers
activation of Trevor's Special Ability

Niko won't speak during
Tennis
Races

meaning that he didn't have any voice line that could fit in the activities listed therefore these voice lines were removed entirely

Trevor still speaks during scripted events

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