Cobalt Sentry

The Cobalt Sentries are an elite secret police and internal affairs investigation unit within the Decepticons. They work without restriction, weeding out any possible traitors and moles. All Cobalt Sentries are said to sport distinctive blue armor.

They're so elite, they've only got two members.

The Cobalt Sentries include:

• Garboil
• Howlback

Trivia

• The Cobalt Sentries sprang from unused deco choices left over from Microchange, namely the blue MC-03 Condor and blue MC-02 Jaguar. They were originally available individually or in an exceedingly rare gift set with the red version of MC-01 Micross.
  
  
  From Teletraan I: The Transformers Wiki, a Wikia wiki.