Strange connection between campaign and zombies?

[flamecommando36]

Ok,this may seem insignificant but i heard about an easter egg on verruckt where you dive onto a blood patch and hear screams,i had to go to bed soon before that so i decided to try it on solo,then in the verrukt loading screen,that same music played from the last mission in the campaign where youre diving into the other boat .the music was the same?does anybody have a theory why?

[Ghekz]

Why not post in the thread about that then, rather than making a completely new one?

[thezombiekiller]

Don't be too hard on him :/

But yeah, this is a re-post. Use the search function next time.