Sniper Elite 3

Story related, cannot be missed.

For this final mission, your objectives are to eliminate four mortar spotters, a tank and the mines along the road that Churchill’s convoy intends to travel on. After completing your first objective of eliminating the spotters, you have 7 minutes to make your way across the garrison and trip the mines in the road. Your third objective is to destroy the tank patrolling in the area of the road so that Churchill’s convoy can safely travel through.

Once you have removed all three threats to Churchill, you must find and kill Raubvogel himself. Make your way through the mountain pass to a wooded area that camouflages numerous snipers and Raubvogel himself. After taking out some snipers, approach a stone in the middle of shallow water and pick up a note taunting you one final time. Raubvogel takes more shots to kill than the average soldier, but with a few well-placed bullets, he will go down easily. 

Enemy placement is moderate and you will most likely be spotted numerous times. Other than the timed section, take your time and stay in cover as much as possible and you shouldn’t run into any trouble, no matter the difficulty.