Get into a narrow street and engage the enemy in an alleyway.

Find more cover, advance to the side door of the friendly building, find the ground floor already occupied by the enemy, eliminate the enemy on the ground floor and meet up with the friendlies on the first floor! "Hold your fire, my own men, we're coming up!" Come to the first floor, when a large number of enemies appear in the courtyard and building opposite, and there are enemies descending from the plane! The planes can be blasted down with grenades!