To get this achievement you'll need to complete the On Her Majesty's Secret Service missions - Alpine Valley and Blofeld's Lair. The achievement will pop on the mission review screen at the end of Blofeld's Lair.
If you find yourself stuck at a particular checkpoint and need some guidance, I've found some great videos. I did not make them - all credit goes to the content creator gocalibergaming
First video is Alpine Valley and the other 3 Blofeld's Lair.