Pin your opposition deep
Go to the substitution for the onside kick defense. Put in the fastest DBs and WRs. When it is time to kick off, pick the onside kick. Allow the power meter go just beyond three quarters full. The ball will bounce on about the 5 or 10 yard line and your players will be there to tackle and/or recover the onside kick deep in the opposition's part of the field. Sometimes you will even get a safety.