I really like how the majority of these Achievements take place at the start, it truly makes things a lot easier.
So right at the start when the KPA are about to invade the base you will have to run down to wall blocking the train tracks and hit the red button once the seekers start flying in so you can trigger your WWE entrance styled pyrotechnics. You don't necessarily have to be perfect either so you can still spam the button and eventually destroy the seekers that might have crossed over the flames.