Pick up a new weapon

Look at a VR Bot behind you and make it wave back (playing as the VR player).

Complete any Challenge Tomb

Survive a night in the Siberian wilderness

Enter the Syrian tomb

Hit all targets in the attic with the toy gun

Complete the game in explorer mode

Complete the game in moderate mode

Stealth take-down 30 enemies

Find a Journal Note

Defeat 20 enemies with headshots

Find a Treasure