As it says in the Summary, you can place Explosives while falling from any height in the Free Fall animation. The Explosives then get instantly placed on the ground exactly under the position of the player. I believe this is quiet unrealistic behavior and should be removed.
Points of Note:
1: There is no animation in-game showing you place Explosives while Free Falling.
2: The Explosives themselves appear immediately on the ground without travel time or drift.
3: Why would any Soldier wanna place explosives randomly while falling through the Air? without knowing exactly where there gonna land?