The Caspian Sea has a hot climate - your comrades won't survive without water. This chapter in our guide to Metro Exodus focuses on Artyom's efforts to get some water.
You meet Anna. Speak with her - your wife will give you a few side quests related to slaves. Do them if you want to have a good ending in this chapter. Go back to the Aurora after you have done the side missions (or if you decided to skip them). You have a new objective - go with Damir to get some water. Replenish your supplies before you move out - you will face multiple enemies. Also, don't forget the gas mask filters.
You have to get to the northern part of the map - you can drive there in a UAZ. There, you will meet Damir - he is waiting for you near a campfire. Follow him to the cave. The path is rather linear - the only problem here are mutants attacking you from time to time. Keep following Damir. You come across slaves - Damir suggests you a stealth approach. Decide how you want to complete this part - your choice will determine the chapter's ending and Damir's fate.
Your objective is to reach the lever that opens the gate. If you don't care about getting a good ending in this chapter, start shooting everyone. There are a lot of enemies here so be careful. Check all rooms for more supplies.
Reach the lever, the one near the closed gate - the lever is on the upper floor. Interact with it to open the gate and escape with Damir.
Upon entering the Baron's fortress, you will encounter a large group of enemies. The majority of them is standing with their backs turned towards you - use this opportunity to eliminate them.
If you come across bigger groups, distract them with cans. Use this method to eliminate them one by one.
Don't stop, keep moving upwards. Avoid killing enemies when it is possible to spare their lives.
Dogs are the biggest threat here. They can deplete a lot of your health points and they can the attract attention of other enemies. Try to eliminate them as fast as you can before they manage to ruin your plans.