Considering there was one in the movie, I'm surprised they didn't make one. They love making Transformers of non-TF vehicles in the movies (See: Stockade, Landmine, Incinerator, Brimstone). It could've had a playset version that would've included a crawler, boosters, and maybe even the Xantium. Since Air Raid's radar dish mounts with C-Clips, they could've easily made it so the hypothetical Legion would be able to piggyback on Air Raid, too. Would've been a great addition to the line, and it works on so many levels. Ah well. Just idly speculating.