You were in Gmod 10 and you spawned a dropship with the console and when it spawned it gust staid in one spot it turned around but it dident go forward?

is this with SB3, try turning it on its side with physgun and getting in and i think then you press space
or if you mean the combine aliens, i have that problem to, i think it is because they are controlled by waypoints on the map and gmod won thave those on their maps so the combine dropships dont know where to go