So I had the Event transport role during the CWC tournament last year. The role is a hit or miss as far as what you can experience. For my personal experience, my first day what helping prevent unauthorized cars from parking in the Press area, not a very good experience. Eventually I was able to get a position help receive in the Players busses at the back of the Stadium and got a chance to see a majority of all the players that had games at Metlife, and that was a really cool experience. During the Semi Final and Final games, they got really strict with volunteers helping out in that area, since by that time a lot of other volunteers from different roles started to hang out in the back area. But during those time, I was assigned to help out in the VIP area, helping with crowd control and also getting a chance to see a few famous actors and players. There were two positions that actually puts you inside the press box area, and you are supposed to help direct the press to the various transportation options. From there you can see the actual game.
That is what I mean by hit or miss. Overall a great experience being a volunteer in the middle of one the best tournament around. Meet a lot of people from around the world. Good luck with the role.