As a Milwaukee native, yes RedDog was readily available. It was not good. Lower priced than MGD, but in that mix with Beast and Old Mud.
Milwaukee's Best, and Old Milwaukee.
It is still sold in some markets, particularly urban markets. I know this as I'm still friendly w some MC people. I saw it in a store in Milwaukee last month.
He says it's still sold in Indy too, though I don't recall seeing it recently. Its funny they have brands which still pull decent share with absolutely zero marketing spend.