Reveal the Shield is a subline imprint of the 2010 Transformers line that began in November 2010. As a toy line with loosely defined fiction continuity, it's both a continuation of the Hunt for the Decepticons segment of the 2010 Transformers line.
Transformers Hunt for the Decepticons (HFTD) is a toy-line based on the more movie-esque designs but with characters from previous generations, like Axor and Banzitron.