The amount of practice, study and hours spent mastering every type of environment (shooting from buildings, helicopters, ships, shooting thru glass, walls, different mathematical calculations for temperature, humidity, altitude, load, etc.).

FORBES: What Is It Like To Be A Sniper?

The managing director of BAE Systems Surface Fleet Solutions said building the Type 45 ships had presented new challenges for the shipyard.

BBC: NEWS | UK | Scotland | Glasgow and West | HMS Daring sets sail for trials

Plans to clear silt from Gloucester Docks, using a new type of dredging, have been welcomed by organisers of the city's Tall Ships Festival.

BBC: Tall ship in Gloucester Docks