Metal Gear Solid 4: Guns of the Patriots Tips

Emblems (the hard ones)
Assassin's: Successfully complete the game in Single Player mode with killing more than 50 enemies with the knife, having over 50 CQC holds, and getting discovered less than 25 times.

Big Boss: Successfully complete the game in Single Player mode on the hardest difficulty using no continues, instigating no alerts, killing no enemies (including Bosses), using no life recovery items, using no stealth suit or bandanna special items (can possess, but not activate), and with a completion time of less than 5 hours.

Fox: Successfully complete the game in Single Player mode on the Naked Normal or higher difficulty using no continues, instigating no more than five alerts, killing no enemies (including Bosses), using no life recovery items, using no stealth suit or bandanna special items (can possess, but not activate), and with a completion time of less than 6 hours.

Fox Hound: Successfully complete the game in Single Player mode on the Big Boss Hard or higher difficulty using no continues, instigating no more than three alerts, killing no enemies (including Bosses), using no life recovery items, using no stealth suit or bandanna special items (can possess, but not activate), and with a completion time less than 5 hours and 30 minutes.

Hound: Successfully complete the game in Single Player mode on the Naked Normal or higher difficulty using no continues, instigating no more than three alerts, killing no enemies (including Bosses), using no life recovery items, using no stealth suit or bandanna special items (can possess, but not activate), and with a completion time less than 6 hours and 30 minutes.
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