For this achievement, use a team with a good return man. The best two are the Miami Dolphins with Ginn or the Chicago Bears with Hester. Personally I used the Bears because the team has a higher overall rating. Try and win the toss at the start of the game and choose to 'Receive'. Score a touchdown with that return and then let the other team score a touchdown. They will then have to kick it back to you. Try and return that one for a touchdown and you should have about 200 Return Yards. If you don't, then repeat the process again. Have a look at the "Game Stats" to make sure that you scored all 200 with the same player.