Honestly, when I grow a bolt and die, its because somebody had ice in their veins and Icebreaker in their hands. When they run I usually get the kill, when they realize the rush is coming and prepare, is when it gets hairy. Also, let's be honest, every class has an annoying made or two. Firebolt also has a big frustration, if I get a perfect toss right on half your squad, and know I'm gonna get a kill or two on burn, but you kill me before the bolts are spawned, they don't spawn. You stick me with a grenade and I kill you before it goes off, I'm still stuck.