peopling including some trying to hide. the visual similarities to call of duty are striking. they know perfectly audience and talking to them in the same language. reporter: halve yeah says audiences, young hard line islamist men yearning to be heros. experts say the west is another important target audience. one is us, it s click bait, you know? it s stuff that gets us upset and angry or scandalized. reporter: the washington post interviewed isis defectors who made videos. some beheadings and battle scenes have stage word jihadists performed multiple takes, like actors, and read three cue cards. some battles are designed or suicide attacks are designed not only for military target or for operating target but to be recorded and to be distributed