On the Tanker Ships map created with the Left 2 Mine mod, you will need to get to the rescue helicopter, running across several connected ships. They will need buttons to open the doors and hold for several minutes under the pressure of zombies. Along the way you will find more and more powerful weapons. A card can be both one and with friends.
Инструкция по установке карты Tanker Ships
Распакуй его содержимое в папку saves, расположенную в папке с игрой.