Call of Duty: Modern Warfare 2 Guide

What is the "call of duty?" Duty is defined by Merriam Webster as "obligatory tasks, conduct, service, and functions that arise from one's position in ... a group."

Tasks and behavior that are obligatory are all ultimately voluntary. However, the "call" which precedes this statement makes shirking or ignoring these tasks socially unacceptable, and morally disdainful.

Here then, the phrase "call of duty" makes a set of tasks very obligatory. Those who ignore it are free to do so, but at the cost of their own conscience and contribution to the good of society.

• BASICS // Of the game, in case you're new to the series.
• WALKTHROUGH // For Veterans who've gone through the campaign on Normal already.
• INTEL // Because military intelligence is an oxymoron.
• SPEC-OPS // Again, all done on Veteran, because you get three stars or you get nothing.
• ACHIEVEMENTS / TROPHIES // Myriad video strategies for earning the toughest Achievements / Trophies in the game.
• MULTIPLAYER // Video strategy showing how to get to secret locations on multiplayer maps.
• Q & A // About common game problems (note — technical PC issues are not covered).

Wars are not all evil. They are part of the grand machinery by which this world is governed.
- General William Sherman