Call of Duty: Black Ops Declassified's flashback style allows its story to travel around the world. Each level sees time move forward, and as the years change so do the countries, with the action transporting you to areas such as Vietnam and Afghanistan. From city streets to snow-covered bunkers, no two levels look alike.
If you played the original Call of Duty: Black Ops you will have an idea of what to expect from Declassified's secretive tone. Short videos between levels set the scene for each mission. Authentic looking film footage shows documents covered in black ink, slowly revealing the information they hide and offering tantalising glimpses of what's to come.
During missions the familiar Black Ops feel remains, as does the fast-paced, fluid action. Things can change in an instant once you're in the field and it is vital to listen to your commanding officer. With constant updates on the unfolding situation as you fight your way forward, keeping your ears open will be vital to your chances of success on the battlefield.