BFG (M249 SAW) in City Streets level
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Black Ops difficulty setting
Finish the game on the hard difficulty setting.
Finish the game under the Black Ops difficulty setting to unlock the M16A2 (M16 with grenade launcher) for use on any difficulty setting.
Finish the game under normal or hard difficultys. All guns will now be silver and have unlimited ammunition. REMEMBER: The silver weapons will only be available for the difficulty setting you have completed and any lower difficulty settings. This does not include the Black Ops difficulty setting. You will always have silver weapons on that setting.
How to beat enemies
Use destructive objects to your advantage to shock, hurt or even kill your enemies.
How to beat enemies with shields and body armor
There is no real secret to use with enemies with full body armor. Head shots will not work; just shoot. For enemies with shields, use grenades or RPGs. Or, get behind them and kill them by shooting them in the back.
During the final battle there is a safe (one of the secondary objective items) on the left walkway. If you destroy the safe, a message similar to "'You have destroyed Secret Burnout Renders" will appear.
How to beat RPG troopers
Whenever you encounter an RPG trooper, the easiest way to take them out to is to wait until they fire a round (pop out then hides behind something). While they are reloading, shoot at his midsection. If successful, you will shoot and detonate the RPG he is trying to reload, blowing him up.
Aurora stealth plane reference
In the first mission, under any difficulty level other than easy, you can destroy Intel as a secondary objective. One of those Intel-containing laptops once destroyed holds information on an "Experimenting aircraft code named 'Aurora'." The "Aurora" is supposedly a real, yet secret, aircraft. Most of the Intel is real or based on real world...