Undertaker

After the Mission Blood Brothers, Packie calls you about the death of one of his brothers either Francis or Derrick depending on who you chose. Packie tells you to dress in a (smart) suit (,shoes) and Kate will call you a few minutes later seeing if you'll attend the funeral. Before heading to the marker you should head to gun shop to stock up on ammo (preferably RPGS) to make the mission easier. After the funeral cut scene you'll be attack outside, along with Packie where you'll face about three waves of four Albanian hoods coming in cars from the sides and from the middle alley. You must kill them all before they destroy the hearse caring one of the McReary Brothers. After killing all of them you'll have to drive to the cemetery (varies on who you killed) with two cars of Albanian hoods attacking you, you'll again have to protect the hearse and if the back door pops open or is open you'll have to watch your speed so the casket doesn't fall out.