looking into this..

5/4 accomplished or in other words how many rounds you have passed. The ending is the same, there is no happy ending, you’re just playing to see how far you can get and having fun doing it.

4/4 zombies still come and you’re forced to fight on for the sake of fighting until you either get bored or die. You must find enjoyment solely in the idea of killing more zombies until you eventually succumb and die, left only with what you feel you have

3/4 which is essentially the same as boosting your social standing and accomplishing goals in life. Accomplishing these things helps you to feel good and can maybe make life, or rounds, easier but the end goal is the same. You get old. You hit a point where there is no progress to be made and yet

2/4 You’re just playing and fighting zombies for the sake of fighting zombies. You have goals, in life such as graduating college, getting married, being successful and this is paralleled by zombies as you can get better equipment and stronger guns,