Originally Posted by JediLazarou:
“The second one was called "Dusk" and looks like it is another part of the Charlie Don't Surf level... unless it's from the bit later in the game where you go to rescue the chopper pilot?”
Nah, it looks like the very start of 'charlie dont surf' as you can see the television tower in the background.
The second one is where you plant all the C4 and ambush the troops on the hill - when they tell you to fall back, as they think you are a larger force than you really are.
I hope on the third one you can use the minigun in the chopper, where they tell you to hold L1 to spool the ammo