Perhaps Russian soldiers are purposely sabotaging the missiles?
What is considered as "fail"?
> can include anything from launch failures to a missile failing to explode on impact.
If people or/and expensive gear were too protected for that kind of missile was it fail in the field?
If they were protected from the explosion? By that definition, no. It worked. Just not well enough.
By that definition, sure. As long as the protection included something that actively broke the missiles.
Missing the target and hitting civilians?
Is it a war crime if your missle misses its target because of failure?
Double event like missing the target and anyway hitting some civilians is rare, let us be honest. Hitting some special civilians might be not a failure for an attacker.