Metal Gear Online - Platform: Playstation 3

Ranks:
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Successfully complete the indicated task to get the ranking to appear next to your 
name online:

Bear: Perform a lot of CQC attacks. 
Bee: Perform a lot of scans. 
Crocodile: Have a very good kill/death ratio. 
Dove: Perform a lot of non-lethal attacks. 
Eagle: Have a large percentage of headshots. 
Flying Squirrel: Have a high percentage of rolling. 
Jaws: Perform a lot of knife kills. 
Kerotan: Perform a lot of captures. 
Pigeon: Perform a lot of non-lethal attacks. 
Rat: Fall for a lot of traps. 
Sloth: Get shot in the head a lot. 
Snake: Play a lot of sneaking missions. 
Turtle: Use the cardboard box a lot. 

Bonus songs:
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Progress through Metal Gear Solid 4: Guns Of The Patriots to unlock new songs in 
Metal Gear Online. All songs will become unlocked with a cleared saved game file 
from Metal Gear Solid 4: Guns Of The Patriots. Note: Continuing a new game 
session on a cleared saved game file will cause all Metal Gear Online tracks to 
become locked again until you pass the point where they are normally unlocked.

Singing character:
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While playing the game, type  in the chat window to have your character 
sing a part of the Metal Gear Online melody.

Character selection screensaver:
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At the character selections screen, remain idle. Your character will hide in a 
box or start reading a magazine.

Remove frosty breath:
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When playing in stages where your breath frosts, have Snake play dead while 
prone, and his frosty breath will no longer be seen by others.

Dizzy character:
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At the selection screen, keep spinning your character in circles. When you stop, 
he will get dizzy and fall over.