YMMV / The Viral Factor

• Complete Monster: Sean Wong, supposedly Man Jon's superior, is quickly revealed as a traitor under Gunther Tyler's payroll when he had his entire team lured into an ambush, getting almost everyone killed with Sean shooting Man-Jon and his fiancée, killing the latter and leaving the former with a bullet in his cranium that would kill him in weeks. Obtaining a highly-contagious smallpox virus sample, Sean tests its effectiveness by releasing parts of the virus on a freighter, leading to the entire crew's deaths, before setting up base in Kuala Lumpur, ordering his men to kill a woman and child for witnessing his activities along the way. Kidnapping Dr. Rachel Kan's mother in order to coerce the doctor into helping develop a vaccine and mutate the virus into an extremely contagious Synthetic Plague, Sean intends to assist Gunther unleash an epidemic before mass-producing and selling the antidote at a high price, uncaring about the millions who would die in the initial outbreak while concerned about his share of the profits. When the Man brothers retrieve Dr. Rachel and the sole vaccine sample, Sean reveals he had abducted Man Yeung's little daughter and injected the virus into the child, forcing the brothers to surrender the vaccine.