Yes, that's the prototype F-15 livery. The closest replication to that is the F-15C's standard color in Ace Combat 04, which was further referenced by an F-15J skin in AC7. Obviously there are differences between all three skins if you look closely, but they're the closest we have.
In addition, orange coloring is common for some prototypes, which is why Mihaly's livery uses orange colors. He flies prototype aircraft.