Bleeding edge armor would literally destroy the other 2. 1, vibranium is not indestructible in fact the gold titanium nanoparticles are a little stronger. And 2, stealth is only necessary when you cannot go into action head on, which is easy considering that Mk. 50 can make any weapon provided it has the nanoparticles necessary. And yes flight, hypersonic flight in fact, Mk. 50 can break the sound barrier with relative ease.