Perhaps in an alternate universe, this would be totally believable. Particularly if Picard had been held captive for a much longer period, and the experience made him more hardened. But it's very well done, regardless. I love the style you use, Kracov. Is the 'DATADATADATA...' bit an in-joke as Picard pummells Madred? Otherwise it's a bit odd.
Love it overall though.