Quote Originally Posted by jaydisc View Post
"Scavenger" comes with Devastator. "Demolisher" is the Voyager. When asked about it today in one of the panels, they said it's not an error and the difference will be clarified.
This has been clarified:

*** SPOILERS ****

There are about 15 Constructicons and only 6-7 are needed to form Devastator at any one time, so Scavenger IS NOT Demolisher. This is also reinforced by the scene of Demolisher's head exploding in the ShoWest footage. Screenshot provided upon request