scorestreak means an unbroken streak (continuous series) of scoring, acquired without one's player character being killed. Lexicurio rates it Sui generis — a strength score of 86 out of 100.
noun
- An unbroken streak (continuous series) of scoring, acquired without one's player character being killed.“Those who prioritise scorestreaks are using Nomad’s Rejack ability, which provides a death-defying injection of nanoparticle serum: if an opponent manages to kill you, you can bring yourself back from the dead and continue your current streak.”