Ace Combat Infinity: Campaign Challenge "Stonehenge" (Walkthrough/Commentary)

Clearing Ace Combat Infinity's Mission 4: Stonehenge within 7 minutes and at least 20,000 points. The only way to do this is by destroying Stonehenge's defenses while AWACS and Goodfellow are still discussing plan B. Thanks to Incognitus01 for informing me that the defenses are destructible during this time! If it weren't for the minute-long dialogue after destroying the last railgun, I would've finished this within 6 minutes for the other Stonehenge challenge. Why did they put the Mission Accomplish after the dialogue? Oh right, because Project Aces.