well needless to say i didnt watch it till the end.
theres 6 girls standing in a row, they look pretty shaken (this is before i knew what the title was and stuff) who knows what will happen. one then tries to climb the 2m wall behind her. as soon as she puts her foot up, she gets shot and she falls to the floor. we see a glimpse of a rifle. it is not a bibi or paint gun. it is an m16. more shots follow.
at that point i closed it, i absolutely could not believe what i had just seen...
maybe at the end there is something to show that its not real after all! but im not willing to take that risk.