I've beaten everything on veteran except The Silo, and its by far the hardest mission. I only died 5 times on Hill 400 total and Crossing the Rhine was the easiest out of all missions. I got a checkpoint right when a mortar is in the air, the next 3 seconds im dead. It makes me so angry

Its already happened about 4 times. Everytime im sniping, I take them out fast but theres always one that shoots right when I get a checkpoint. I have enough struggles clearing the village, now they kill my efforts with that misplaced checkpoint. I feel as if I deserve my Achievement but I cannot do anything about it. Any ABCDEF combinations that I could try to shorten the time it takes me to get to the Silo where I can snipe?