I'm stuck on the mission where you have to drop a man (can't remember his name, he tanners friend looks a bit like him) at the boathouse to pick upm his laptop. The baddys turn up kill him and then Tanner (the main man) is left in this room and doesn't have alot of time to get out. I think you are meant to go up a ladder but there is a hole in the floor. There is a forklift truck which I think you are meant to use but I haven't worked out how. Plz help