How To Kill Zombies Act. 3(ハウトゥキルゾンビーズ Act. 3)

In the year 19XX (a long time ago), a meteorite fell in Tokyo Bay, Tokyo is destroyed & for some reason it is full of zombies. The government closed the entire Kanto area. The main character is an international terrorist who is locked up. Until she escapes from a prison in Tokyo while fighting zombies Act. 3 focuses on shooting.