Time Splitters Fp Captain ash gets stuck

Lock Captain Ash Behind Fence:

first of all this trick is on the "Scotland the Brave" mission

This trick is actually quite simple, From the start of the level make your way to the building with the gunboat.
kill everyone and raise the port cullis then get the crain and drop the gun somewhere you can get to it (like on the flat part of the boat) then simply go down and grab it with your up link and carry it past the area with the truck to the fence that you usually knock down, now run into the fence with the gun and it should pry
it away enough that you can run through leaving captain ash on the other side
note that after you get near the part where the bridge goes down he usually appears
behind you without the fence moving