Yes, it is also called capstone project in my school. I got few percentage below the class average. It was MUCH lower (14%-ish) than all other courses I have taken this year. This is bascially pulled behind by my teammates, this is a 5 people project and I can't pick my own teammates. But I don't think I could use "bad teammates" as excuse for this low mark, what do you think?
The worst thing is that, this single capstone course worth 1/3 of the credit of the entire year course work. Even I have many other courses with good mark, but this course worth lots of credit.