Every subclass has different perks. Some better than others, some worse. That's the whole point. It seems ridiculous to complain about something because you've gotten killed by it, unless it's outright cheating with a lag switch or bad connection. Just deal with it. Use a Titan and super them with that super where they slam the ground and kill everyone playing. And what's a firebolt? Is that the sticky grenade or the one that just sits there and burns?