Aaron
Blue, Red, Yellow, Yellow, Yellow, Yellow, Yellow, Green.

Air Instruments
Red, Red, Blue, Yellow, Green, Green, Green, Yellow.

Always Slide
Green, Green, Red, Red, Yellow, Red, Yellow, Blue.

AT&T Ballpark
Yellow, Green, Red, Red, Green, Blue, Red, Yellow.

Auto Kick
Yellow, Green, Red, Blue, Blue, Blue, Blue, Red.

Best Buy Kid (Nick)
Green, Red, Blue, Green, Red, Blue, Blue, Green.

Euro Contest Winner (Johnny Viper)... Read More

cheats & Tips - Unlock all Missions

cheat:

Go to Main menu > Select Additional Content in option.

Pick the Promotion Code and Enter the next code

6aPHuswe  =  This unlocks all missions

check out more cheats

One you have more reputation, go back to the abbot.  He will guide you to the cave and let the monk know and the monk will be with you.  Once you enter you will see sister Hannah, she will be with you along the game.  Once you come out you will fight hollow men, and protect Hannah. 

Now go though the 3rd door, in that room you will fight more hollow men.  Here... Read More

Gears of War 2 Gameplay Video , 1st full mission spoiler