Choosing to side with Derrick in GTA 4 raises friendship with Packie, providing access to phone bombs. Opting to kill Francis rewards players with $10-20k, the ability to lower wanted levels, and freedom from his blackmail. Killing Derrick leads to easier access to a Romero hearse in GTA 4, but may result in happiness for Niko and player.

Grand Theft Auto 4's main character Niko Bellic has to make a lot of tough decisions during his adventures in Liberty City. Developer Rockstar includes moments like choosing death for Dwayne or Playboy X to highlight the harsh realities of living a life of crime and how these decisions weigh on Niko throughout the story. Niko gets presented with another moment like this later in the game, being asked to choose between two brothers: Derrick and Francis McReary.

Both Derrick and Francis were raised in an Irish Catholic home prior to the events...