Yakuza: Dead Souls

After you meet Hasegawa for the first time as Akiyama, you will can access the Menu > Mission > Directives which are basically milestones for performing certain actions, such as killing 1000 zombies, hitting 100 headshots in a row or killing 20 zombie mutants. You are awarded points for completing these milestones, and new directives will appear as you complete the existing ones. Speak with Hasegawa in Cafe Alps once you've accumulated a total of 5,000 to unlock the trophy.