Today being an exception (as I did get Killimanjaro!) I am certainly someone who has lots of spree medals. I mean, not to brag or anything at all, but very few people have ever had Invincible on ranked, the odds of getting it are slim to say the least. I'm insanely lucky with sprees because once I am on a spree I am extremely cautious and eager to protect it, (a high spree that is!) and time every attack as perfectly and carefully as I can. If you check my game history, custom games aside, almost every single game, especially in social I have a Killing Spree. I am almost 99.9% certain to have at least 1 spree in Big Team battles. Now that I have had the best spree in ranked and social I am obsessed with multi-kills and am constantly on the look out for the perfect chances.