Each team in the EA league can obtain these medals, They are for Tournaments help by EA. The easiest way to get them is to join a public team that already has them. Just do an open search for public teams from the search menu and scroll through them. Right now, "TGods on Ice" has them, but you can only have 50 players at a time so keep trying to join. Once you get in, just go to awards, view each of them and quit the team. All of the medal achievement will pop. This goes for the trophy as well - the team "Northern Puck Hounds" also have all of the trophies.