You have to say bullet resistant, because say bullet-proof, and someone inevitably tracks down something the armor can't withstand that is fired from a gun. So yeah :P And again, you just pointed out some runs it does this, others it doesn't. We spoke up about our opinions on it, so, take what you will.<br/><br/>Also, I'd wanna point out that is the armor itself. Deathsroke isn't covered 100% by the metal. In the case of Nightwing's attack, the material on Deathstroke's neck would not be the prometium or Nth metal alloy. It is likely a bodysuit of some kind, and not made out of such a rare/expensive/dangerous material.<br/><br/>I'd also argue that DS's healing factor isn't so great that a bit too much heat or electricity wouldn't be an issue. Heat, maybe, yeah. It'd just burn him. Electricity would still cause muscle contractions and mess with your nervous system and heart. While Deathstroke is likely healthy enough to avoid the majority of the issues that would imply, the immediate effects such as stun/muscle paralysis/etc would still be a thing. Could he fight through it? After a moment, possibly, but it would still hurt like hell trip him up a bit.