I don't have the game and I was just wondering how if WFC Soundwave and Megatron anywhere near in scale. I tried to look for some vids on youtube, and whenever they were together on screen they weren't on the same plane so to speak.
I don't have the game either, but judging by Bumblebee and Cliffjumper, Hasbro seems more concerned with being able to fit the WFC figures into the deluxe category than scalar accuracy.
it seems doubtful that Megatron would be in scale with Soundwave unless Megatron is like the Impala of tanks. personally, to own the physical, toy incarnation of those 2 makes me oblivious to scale.
In-game, Megatron is the same size as Warpath. The scout class is the only real group that is significantly smaller, and Bumblebee is the only scout to be made a toy.