With infantry on the ground having increase mobility on the ground, skydiving got left out even though you far more maneuverable while skydiving! You are forced in a flat and slow position for skydiving. You should be able to be in different position while you freed all because right now your a falling brick with a parachute.
To get an idea of what this would be like, think helicopter controls only your constantly free-falling. You would use the WASD as the default keybind. {F21224} {F21225} {F21226} {F21227} {F21228} {F21229} {F21230} {F21231}