Kill your first Enforcer. I'm sure this will send the Highwaymen a good message.

Kill 25 enemies using any type of takedown. Put that railroad spike to good use!

Complete 3 Treasure Hunt missions. Host only.

The dog made it off the island alive

Found all of Du'Met's business cards

Found all of the Black Framed Pictures

Kate and Jamie both escaped the glass trap

Fixed all of the fuse boxes

GTA Online: You completed Act I of The Doomsday Heist as Leader or Crew.

Reach Rank 30 with any Pistol or Akimbo Pistols weapon.

Save the damsel, but is she in distress?

Jamie and Erin kissed

Kill 10 or more enemies with a single explosion (Tonkor, etc)