Red Rocket is more of a hybrid American Red Ale / Wee Heavy... It's not an authentic American Red Ale anymore than Killians is an authentic Irish Red Lager.
Wee Heavy - Scotch Ales traditionally go through a long boil in the kettle for a caramelization of the wort. This produces a deep copper to brown in colored brew. Compared to Scottish Ales, they'll be sweeter and fuller-bodied, and of course higher in alcohol, with a much more pronounced malty caramel and roasted malt flavor.
An actual quote about Red Rocket...
"Red Rocket Ale is a bastardized Scottish style red ale that traces it's origins to our homebrew roots. This full bodied and hoppy brew finishes on the palate with sweet, caramel malt flavors."