They get rewarded based on your returning rules:
Returning
6 points for every Kick Return TD ALL
3 extra points for every Kick Return TD of 100 or more yards ALL
6 points for every Punt Return TD ALL
3 extra points for every Punt Return TD of 80 or more yards
So if they return a 50 yard punt for a TD = 6 pts, a 81 = 9 pts
Still not clear..sorry.. here is my example... lets say I start darren sproles as my rb and I also start New O team ..would I get double the points for a td ?...
You'd get points for Sproles and the Saints. You can check this by going to Players and clicking on the Saints or Sproles from last year in week 1.