In this scenario, you have to choose between exiting north and taking Bastogne. I'm guessing doing both in 2 1/2 days is near impossible. Bastogne will be an end-game decision. I have decided to stay north with my main line of advance. I shall take the objectives, leave some forces behind to repel counter-attacks and guard my flanks. I shall push on and exit as much as possible. With My reinforcing units from the south I was tempted to try to take Bastogne, and indeed I leave that possibility open. But my plan for now is to strike northwest and take the objectives in force, not risking many casualties. This also, I hope, will take some pressure off my exiting forces.