That can happen. I was working three flights of four ship F-16's in an MOA a few years ago. A VFR FLIB trucked towards the airspace from the south to the north, 1200 code not talking to anyone. When the FLIB got within 3 NM of the MOA I advised the leaders of each flight about the intruder.
ATC: "SNAKE1, COLT1, and MACK1, VFR intruder entering XXX MOA from due south, altitude indicates 11,500."
SNAKE1: "Snake has spike. Colt, Mack, ready intercept."
COLT1: "Colt has left side."
MACK1: "Mack has right side."
SNAKE1: "Snake has bottom. Fight's on!"
Seeing 12 targets converge, and then diverge on one slow target was quite a sight. I can't imagine what the FLIB driver saw! 12 F-16's passing by at high speed.
NXXX: "Uhhh, center? This is NXXX. I have the feeling I'm in a spot I'm not supposed to be. Can you help?"
It took a bit of self control to not laugh as I radar identified him and vectored him out of the melee.