I've had front landing gear problems twice on Nellis.
I was landing once, touched down nice and smooth, everything was going good and BAM! I heard a bang and the nose popped up, when it dropped back down the nose of the plane hit the runway. The whole front landing gear was missing.
The second time, I was taking off and heard the same bang, the nose popped up, and it stayed up until I took off. I checked in F2, the front gear was missing. The gear door was shut. Raising my gear and lowering my gear didn't make a difference.
I turn my nose steering off usually around 51 KIAS. I didn't land rough, I set my nose wheel down very easy and it didn't happen until a few seconds after touchdown.