If you're like me and played through Jurassic World first and got confused as to why it was so short and you didn't get the achievements. Don't worry, there's a whole part you still have to play through.
Thank you to HolyHalfDead for contributing to the 360 Solution making this one easier to make.
You will get this by completing all 20 story levels, after getting all of the following achievements:
PrologueJurassic Park The Lost WorldJurassic Park IIIJurassic World