1) Open editor on any map
2) Place any playable unit
3) Preview the mission
4) Open main menu and execute this code in the debug console:
_p = getPos player; _p set [2, 30]; player moveInDriver (createVehicle ["Steerable_Parachute_F", _p, [], 0, ""]);
5) Land and observe awful non-skipable animation.
Try with unit with no weapons to observe that unit still does animation for primary weapon even though there is no primary weapon.