Machine-guns are towed on boggans by the white-shrouded figures and, when needed, can be set up and in action like a flash. This quartet has taken cov(...)

Original Toronto Star caption: Machine-guns are towed on boggans by the white-shrouded figures and; when needed; can be set up and in action like a flash. This quartet has taken cover by a pine tree which serves as a prop for their skis. Cold but exciting work.