In the motel room scene, Tony Almeida tears down the shower curtain and uses it to suffocate Robert Galvez. When Cara Bowden arrives, she sees Robert's body with the curtain on the floor next to him, but you can also see that there is magically a new shower curtain hanging in the shower.
Jonas Hodges refers to a U.S. Marine as a "soldier"; U.S. Marines are not soldiers.