Duke and Damir stay with the crew, Alyosha doesn't get wounded.

Pass the Research Facility without killing a Blind One on the DEAD CITY level.

Pass the putrid tunnel.

Complete the TAIGA level.

Alyosha doesn't get wounded.

Stand your ground against the Bear at the first encounter.

Destroy the biggest statue in front of the children's camp on the TAIGA level.

Attend the wedding on the SUMMER level.

Find all upgrades for Artyom's suit.

Kill 50 enemies at long distance.

Spend 500 chemical resources on cleaning weapons.

Make 50 kills with the Bukhanka.

Drive the Bukhanka.