Make Zombies Great Again!

Big smoke

Ask questions here.
How can I do big smoke achievement 😕
I've been trying to do this for a while. if i can do this. I give information for you.
Hm,I think that I found a way to get this achievement a while ago.... Buy 2 salad meals,I think this worked.
Meal number what and how can I give it to him?
Just 2 salad meal,but its for you.
Thank you