This Is A Pretty Good Start
My load-out is a silenced SCAR-L and a SMAW with various other items of no consequence. Off the top of the match, I managed to get those first four kills (+ a flag capture) and then call in the Predator missile for a whopping 4 kill multi-kill! Naturally, I called in my Attack Helicopter which would get me an additional two kills and get me the AC-130! While I was in the AC-130 viewscreen, my Attack Heli continued to eat and kill opposing players. Once my helicopter was done and I was finished in the AC-130, I took the screenshot below and went about my business. My killstreak ended at 21.
I did manage to go on and finish the game 33-8 as per the other screenshot below.