Thanks For my friend, Jason for the idea and i'm maked this :)
In this misson, you are the Counter-Terrorist. You need to go to AREA 51 For killing Terrorist. Now you must search your friend, the Soldier for ask him a question where is the boss because he's the boss's old friend...
and then you must search the boss [ he is at the SF ].
And you must escape to Ganton again..

Note: sorry a bug here (Wrong cutscene text and i'm forgot to delete it it's at the Meet the soldier part)
Sorry no Screenshot..
Note2: I'm maked this Mission at least 30 minutes so please download it :)