The cheapest way to earn this achievement is to start a franchise and sim the games until you reach a rivalry match. Once the game starts, press start to go into the pause menu, settings, game settings and set the Offsides slider down to 0.
When you're on defense, move one of your players next to the QB of the opposing team and wait until the hike. Be careful not to touch anybody before the snap or you'll get penalized 5 yards. If you're close enough the player will sack the QB automatically.
Repeat this for every possession that the opposing team has, and ensure that you score points sometime before the game is over, obviously. You can let the play clock wind down as low as possible to eat up clock time so you can fold laundry, make a sandwich, surf TA, or something to keep your mind occupied.
If you have not yet unlocked "6 sacks by 1 player in a game" or "Record 12 sacks in a game", this is an ideal time to knock them off at the same time.
The Achievement will unlock at the end of the game.