Kill 20 enemy players in multiplayer using a turret.

Survive 10 explosions in multiplayer.

Kill a zip-lining enemy player in multiplayer.

Drain the Sewers

Reach level 10 in multiplayer.

Purchase a new multiplayer character.

Restore power to the Administrative Block

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

Fully mod and completely upgrade all weapons.

Find all documents, relics and GPS caches.

Complete all challenges.

Complete all optional tombs.

Find 75% of all documents.