Our complete guide to Operation Flashpoint: Dragon Rising is now online here:

http://www.supercheats.com/guides/operation-flashpoint-dragon-rising

It composes of a getting started chapter plus a walkthrough with text and videos of all 11 stages in the game.

It also provides an 'Extras' section for each mission, which gives you ideas on alternative ways to play each level, as well as providing vehicle and special weapon locations if they can alter your way of playing.

Enter one of the following case-sensitive codes without the quotes at the 'Bonus Codes' menu to unlock the corresponding bonus mission.

Unlock Ambush Mission:
Enter the code 'AmbushU454'

Unlock Close Quarters Mission:
Enter the code 'CloseQ8M3'

Unlock Coastal Stronghold Mission:
Enter the code 'StrongM577'

Unlock Debris Field Mission:
Enter the code 'OFPWEB2'

Unlock Encampment Mission:
Enter the code 'OFPWEB1'

Unlock Night Raid Mission:
Enter the code 'RaidT18Z'