User blog comment:Bovell/Color blind assist option for Modern Warfare 3. Killstreak system reworked./@comment-108.38.53.149-20110709061339/@comment-50.40.175.85-20110711005448

FYI Killstreak stacking has been a part of EVERY CoD game that had the Killstreak feature. In my opinion Black Ops ruined a tradition when it comes to killstreaks.