[Membrivio]

That is called an assessment centre. An assessment centre is a series of job-related exercises that help evaluate a candidates skills and abilities. If you link the criteria (and the job description) to this definition it may give you a hint what to expect. Also, don't think it is about who screams the loudest, it is more about your contribution and the way you interact with people.
Once again, the main advice is: be yourself. If you have the skills, you'll get the glory