• 18 College Library

• 16 Combat
• 11 Battles
• 9 Special forces (Military science)
• 5 Zombies
• 4 Shooting
• 4 War video games
• 3 Imaginary wars and battles
• 3 World War, 1939-1945
• 2 Cyborgs
• 2 Dystopias
• 2 Ninja
• 2 Private military companies
• 2 Robots
• 2 Soldiers
• 1 Adventure video games
• 1 Campaigns
• 1 Cold War
• 1 Espionage
• 1 Extraterrestrial beings
• 1 Good and evil
• 1 Hawk, Tony
• 1 History
• 1 Science fiction
• 1 Skateboarding
• 1 Sony video games

• 2 Bungie (Firm)
• 2 Sony Computer Entertainment
• 1 Infinity Ward (Firm)
• 1 Sledgehammer Games (Firm)

• 18 English

• 2 Japan
• 1 Europe
• 1 France
• 1 Normandy
• 1 Soviet Union

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