I got an idea for lua scripted action that will check if object is on the ground and if the object is faneilly on the ground it will go into state which is going to be set on Var1 and also if you put 1 on Var2 when the object will land on the ground it will play the sound setted on object's AttackSound.
I will need a action like this for some of my concepts (like a enemy that will jump and then after landing it will shoot at you, or mine-like custom weapon ring)