The fact that Lyca's people were climbing trees again was not that surprising. In fact, the other companies already expected this and even created some plans to counter this.
One of the people who created a plan against them was called Crow. He was tall — one of the tallest people in Dal Valley, and his crow-like eyes, earned him the name. He and his team of four people were tasked to target a few people from Shen Security.
Their strategy goes like this, Dal Valley is aware that fighting on the first night could cause extreme losses on their side. However, they are not willing to suffer alone. So, they created a plan to slowly and surely target Shen Security while they were sleeping at night.
The team already knew that Shen Security is cowardly. They already anticipated that they would not compromise and would choose to hide, especially on the first night. Of course, their hiding spot should be the trees that surrounded the area.