I found it : it's the folder named "X09BPilotDown". Sadly, when I make a "preview" in the editor, the characters aren't in the house, so the camera shows nothing in the house. More when I replay missions in the campaign menu, I can't see this cutscene. Strangely, I discovered that the switchMove was put in the pilot's init field (so it doesn't work...), and the animation used is "OnChair"...I'm afraid that the animation I searched doesn't exist... :-\.