Question: By the end of the movie, the whole plan of the bad guys is to let Nyah in the middle of a populated city so that she infects a lot of people. But she just walks away to a cliff to kill herself. Even if Ethan failed to save her and kill Ambrose, the plan was not going to work. Or am I missing something? It sounds like a very poor plan to me if she could simply frustrate it by walking away.
Question: Why didn't Ethan just give Nyah one of his guns after she infected herself? She could have easily killed Ambrose and others with a surprise attack since they were more interested in keeping her alive and she wanted Ethan to kill her anyway. She had better odds of surviving that way than the impossible plot that followed. She could have killed everyone but Ambrose and he may have let it happen in order to still have a chance at selling the virus.
Question: When Ambrose noticed the envelope was in the wrong pocket, and was thus tipped off that Nyah was a spy, how did he jump to the conclusion that Ethan was her contact? Did he play a mere hunch when he impersonated Ethan in front of her?
Question: What is supposed to be in those biohazard tanks that makes them explode so violently when shot. Considering what is stored inside them that seems like a stupid way of storing dangerous things.
Question: Throughout the film, Hugh Stamp's accent keeps changing, where exactly is he supposed to be from?
Question: Why didn't IMF just raid Ambrose's house when they realised he only had a cure and no virus?
Question: How did Ethan know the location of the meeting between McCloy and Ambrose on that island?