Soundwave can take on anybot he wants...and probably win. This quote from Exodus (via TFWiki) and since TFP has generally based the background stories and historical comments on the novel Exodus.. at least to date. Soundwave was a gladiator from Kaon who almost bested Megatron in combat, an act that created mutual respect between the two. Soundwave saw in Megatron a desire to return to the swashbuckling spirit of the Golden Age of Cybertron, when Cybertronians emerged from the Well of All Sparks having to escape from the Underworld's monsters rather than being put into a caste. He was appointed Megatron's lieutenant with Shockwave.