As overrated as Carr was (best fighter never to win a title my ass), this is a winnable fight for him. Carr gave a good account of himself against prime versions of Tito, Ike, and DLH. Rest assured, those 3 fighters would have slaughtered Berto. I think Carr would decision the Hatian hack.
Carr is P4P if he's fighting in this era... in any decent era, he's a contender and nothing more and damn sure doesn't win a championship But take him as he was in 1996 and put him in there with Berto and he comprehensively outboxes him
The Kronk version of Carr beats Berto with room to spare. I guess any version up to an including the Trinidad fight (heh heh) The version from... say the Derrell Coley fight (and my god what a shit decision that was) and beyond gets outfought.