30 minutes before you are ready to cook, prepare your smoke (or grill with a smoker box). Heat it to 350 degrees - you will be looking for an average of 300 degrees
Remove the brisket from the marinade and discard the marinade
Cover the brisket with the beef rub and rub it into the meat.
Place the brisket in a fresh aluminum pan with a rack, and put it in the smoker.
Cook for 2 1/2 hours
Remove and cover with aluminum foil and cook for 1 1/2 more hours, or until the temperature at the point hits 205 degrees.
Remove the brisket from the smoker. Ensure it is tightly covered with aluminum foil and then wrap it in a blanket (I have one just for this), and let it rest for 3-4 hours.