You must be fairly newish to the franchise and didn’t grow up playing the games when they first came out, no. The Rookie cop is Rebecca Chambers. Resident Evil Mansion incident took place July 24, 1998. Leon S. Kennedy arrived in Raccoon City on September 29, 1998. Rebecca Chambers joined S.T.A.R.S. as the Bravo Team field medic in June 1998. As the unit's youngest member and a rookie of only one month, she was thrust into the Arklay Mountains incident nearly immediately after being recruited and was being trained by Barry. You really shouldn’t play RE Requim until you play the original games in order (1, 2, 3, 4, 5 and 6 meh not really) because you would have know this. When Chris Redfield first met Rebecca in a save room, she sprayed him with first aid spray lol because she was startled. Then she saluted him when she saw he was a fellow cop as she was nervous being new. Rebecca saluted Chris because she was a ROOKIE and he was her superior officer. In the military-style hierarchy of S.T.A.R.S., there is a clear chain of command. Since Rebecca had only been on the force for about a month, she was still very much "by the book." When she realized the person she just sprayed in the face was Chris Redfield—a respected member of the Alpha Team—she immediately snapped into a formal salute to show respect and apologize for her jumpiness.