Unlock: Liberate the Camp Murder outpost.
On behalf of Nero, a would-be revolutionary in Badtown, go to the three places he’s labeled on your map and photograph the dead pirates there. In the event you run into living pirates along the way, photographing them does not count for the purposes of the quest. He wants the preexisting dead guys.
Of the three dead pirates, there seems to be a 100% chance that a tiger will spawn in the area nearby the pirate to the southwest of Badtown, and the corpse on the southern hill is guarded by a trio of Vaas’s pirates. This is in addition to any other complications that may ensue, such as patrols or other wild animals.