Mission 6

[beepbeep]

I go after Singapore to save it (turns out it's an enemy Leviaphan or something like that), then I return tothe rest of the group waiting for me. After we get through the Gate we are attacked by two groups of fighters, each from one side. Whenever I dispatch them, no matter how quickly (once I even managed to make it within 20 seconds, relying heavily on rockets), the game ends, the boss ranting that I lost over a third of the escort fighters and that I'm fired.

HELP!