Mission 6 Wolverines!
Half way through the defense section of the mission, two BTRs will spawn in. You are required to retrieve the drone controls in the diner across the street. Do NOT use the drone controls after your retrieve them, instead you should find an RPG from one of the enemies in the diner (or in Burger Town, if needed). Now, head back to the roof you started on to refill the ammo for the RPG and use it to eliminate both BTRs.
Here is a video guide with English commentary!
Here is a playlist of guides for this game!https://www.youtube.com/playlist?list=PL-HeW6XkKdUK97oYVSMU7...