Metal Gear Solid V: 20 Things You Didn't Know You Could Do
19. Use Decoys To Knock Soldiers Off Walkers
After a few hours of exploration you'll come across the miniature Metal Gear-style 'Walkers', where their pilots will be essentially impossible to take out, especially by doing so head-on. They're a total nightmare as you can't CQC them even if you sneak up either - which is where the Decoys come in. As they inflate from the ground up, you might have noticed people using them on regular patrol troops to knock them off cliffs or into walls, but place one beneath a Walker's feet, and when it activates it'll send the pilot flying. From there you can treat them like a normal guard - or hop in the now-empty Walker and give them a taste of their own medicine.