The last video shows the change of Jack-he is not as cold-blooded as before. As for the little girl and her environment, the specific identity is not important, which can be regarded as the kind of vulnerable groups and regions, that is, the kind of people and regions that are unable to resist Resident Evil.
First of all, Jack's transformation: In addition to believing in himself, Jack leads a aimless life. At first, Jack joined the mercenaries to treat his mother, but now his parents are dead. Jack can say that he just used the profession of mercenary to prevent himself from starving to death, and at the beginning of the game, he kept talking about selling blood money. But after Shirley's persuasion in the dressing room, he began to recognize the reality, found his own goal, and prepared to atone for his father's mistakes. When the game was over, Jack never mentioned money again. In the end, there was only 50 yuan, which showed that he was not so mercenary. ($50 is equivalent to a free donation)
Jack's redemption: As for the ending, it shows that Jack has found his own meaning in life-he wants to save the world and make up for his father's mistakes. As for the reward, it can be said that "the money is given and the money is gone". In the end, the little girl only gave an apple as a commission, but Jack still said, "You give me a foot and I will give you a foot back", which is equivalent to investing in biochemical warfare for free. This is also the happy ending of the official players, giving Jack a white wash, which also means that Jack is still a mercenary.
The significance of the little girl and the environment at that time: Before the release of Biochemical 7, we can guess that it was a preview version of the new work, but now the demo version of Biochemical 8 has been released. It is too mean to criticize the past from the current perspective, so we can guess that it is a preview version. Of course, it seems that the little girl may represent a kind of person who was helped by Jack for free. As to whether the location is in Africa, I'm not sure, but judging from the environment, it can be concluded that this place is suffering from Resident Evil, so this environment can also represent a disaster-stricken area, which also means that Jack walks around these areas and constantly makes contributions with his own strength.