tien c´est un texte ( en anglais) qui dit comment faut faire
Now that you have Piggsy´s chainsaw, use it on Starkweather´s door to trigger the next event: five Cerberus come running after you, all of whom have assault rifles. After you regain control of Cash, turn off the chainsaw´s motor with the square button, then run through the black chimney room and down the ramp on the other side before ducking into the little hidey-hole on the left. Three of the soldiers will run past you; you´ll need to lure one back to you for an execution ( your chainsaw doesn´t have to be on to get an execution, mind you), then grab his rifle and use it to take down his comrades. The last two Cerberus will likely remain up near Starkweather´s door; you can lure one of them by hiding behind the pillar in Piggsy´s blackened room, tapping, then blowing him away when he comes to investigate. Kill the final one by stepping slowly up the stairs, then blowing his head off with a manually-aimed shot as soon as you see it pop up from the view through the grate.
Starkweather himself lies through the locked door at the top of the stairs. You´ll need to retrieve the chainsaw and cut through the door to gain access to Mr. Nasty, so do so. The Director is something of an anticlimax as an end boss; he packs a revolver, but will run away from you if you get within chopping distance, so sneak around the outside perimeter of the room, with the chainsaw´s motor turned off, until you get close enough to get your shot in. Lock onto him with the L1 button, and then just hold down the X button while you run after him. He´s only capable of taking a half-second´s worth of chainsawing, so as soon as you´re within range, the fight is essentially over. Sic semper tyrannis.
en résumé sa dit qu´il faut que tu exécutes les 3 personnes qui te poursuive et après tu prends leur AR ( Assault Rifle) et tu vas tuer les 2 autres qui surveille la porte. dans le 2eme paragraphe sa dit comment tuer Starkweather