Unsheathed 5 swords from Immortal Skeletaurs without leaving the area

Played for ten hours

Complete all optional tombs.

Complete a match in all multiplayer modes.

Purchase a new multiplayer character.

In multiplayer, be the only player on your team that isn't dead or downed.

Loot 200 enemies.

Kill 25 unaware enemies.

Collect 5000 pieces of salvage.

Force an enemy to drop dynamite that kills two people when exploding.

Kill 35 enemies with the pistol.

Perform 15 finishers.

Complete one challenge.