The new patch for Ghosts released earlier today seems to have accidentaily changed the Maniac Jugg Killstreak to have a SC2010 instead of the weapon knife. The glitch makes the juggernaut a pretty overpowered Killstreak. The Killstreak also counts towards other killstreaks.

Tina has tweeted stating that the team is investigating the reason why that happened and will update on it when they get more information.