I created groups in my course. I added students to the groups. I went in and created an assignment and individually assigned the assignment to the group (i.e. Team1). When students go to see what is submitted they have an individual submit assignment button but cannot see what other students have submitted. I was trying to use the assignment as a groups submission box where all students had access to everything that is submitted and they all can submit a part of the assignment and see what other team members have submitted. This should be a new feature added for true collaboration.
Assignment Submission Collaboration Feature with Groups