Mission 6 Wolverines!
While defending the roof of the sports bar, you should find multiple guns here. Some of them have thermal scopes, use one to eliminate 6 enemies in a row. Reload checkpoints as needed.
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...