There was a gleam of determination in his eyes. Despite facing tremendous pressure and difficulties, he never thought of giving up. He knew that as the commander of the base, he had to take on this responsibility and lead everyone to victory.

However, the decisive battle is no easy task. The zombies are numerous, and their evolution speed far exceeds human imagination. Level 3 zombies are no longer ordinary zombies. They possess higher intelligence and more powerful abilities, making the battle even more difficult.

Xiao Yi knew that to win this decisive battle, he had to be fully prepared. He summoned all the scientists and engineers in the base to discuss new strategies and weapons to fight the zombies. They worked day and night, trying to find a way to completely eliminate the zombies.

At the same time, Xiao Yi also strengthened the training of the soldiers. He understood that only by improving the soldiers' combat skills and teamwork ability could they gain an advantage on the battlefield. He personally guided the training so that every soldier understood his responsibilities and mission.

However, as the day of the decisive battle drew closer, conflicts within the base began to intensify. Some people began to panic and retreat, afraid of death and losing everything. Xiao Yi knew that he had to stabilize everyone's emotions and make them believe in their own abilities and the strength of the team.

He stood in the square of the base, facing everyone, and said in a firm voice: "We can't retreat anymore. This is our final decisive battle. We must unite as one and face the threat of zombies together. Only by uniting can we defeat this common enemy and protect our home."

His words deeply moved everyone present. They looked at Xiao Yi's determined eyes and felt his determination and belief. They knew that only by believing in Xiao Yi and the power of the team could they win this decisive battle.

The people at the base sprang into action. They repaired their defenses and prepared ammunition and weapons. The soldiers donned their heavy armor and prepared for the impending decisive battle. Scientists also continuously researched new weapons and strategies to provide powerful support for the soldiers.

The day of decisive battle finally arrived. The zombie horde surged forward like a tide, but the people at the base were ready. They bravely faced the horde, engaging in a fierce battle. In the battle, they demonstrated their individual abilities and the strength of their team, successfully repelling the zombie horde.

Although the battle was extremely difficult, the people at the base did not give up. They firmly believed that as long as they united as one, they could overcome any difficulties. In the end, under Xiao Yi's command, the people at the base successfully wiped out all the zombies and won the final decisive battle.

After the battle, the people in the base cheered. They knew that it was their joint efforts and unity that won this victory. They were grateful for Xiao Yi's leadership and command, and were proud to be a part of this team.

Xiao Yi also understood that this victory was only temporary. He knew that the threat of zombies had not been completely eliminated, and they must always remain vigilant and prepared to face future challenges. But he also believed that as long as they united as one, they could overcome any difficulties and protect the future of mankind.