I am trying to get my character to automatically open a parachute when he is falling downward. I am using the / character movement > is falling node to use the Boolean return value to trigger the parachute to open. The problem is however that the parachute also opens when jumping up because the "is falling" node doesn’t distinguish between an up or down movement. It basically only tells me if my character is on the ground or not.
You would definitely get the best results by using Z Velocity as Capsu1 mentioned.
Now since you want to do this for parachute I would recommend calculating distance from group to character(Can be done easily using Line Trace) as it just makes sense to open parachute at a certain height rather than just Falling down.
Or just parachute when the Z Velocity surpasses a certain threshold.