During the final shootout, Detective Gresko takes three bullets out of his revolver to fool a man into thinking his gun is empty. He fires one shot, leaving him with two and no time to reload. When Yunika gets Gresko's gun, he fires more than the two shots that should have been left.
This movie is set in 1998. Tommy has a daughter that is clearly at least 5 years old. It also shows old footage of him and his "wife" who is supposedly deceased, who he would have known for at least 5 years. In Best of the Best 3, just 3 years earlier, he had no wife and no daughter.