Can the upgrade give a longer sword and dragon's breath? He would lower the sword and, as it were, cut through two cells.
Hitting two cells is not bad in principle, but it would be better to implement this through a tournament strike, call it a swift attack, so that an Orc fights one from a position, and with a run, breaks through two cells.
The alternative Orc will not be in heavy armor; he will be an eastern version of the Cartalian minotaurs-executioners serving the Black Guard.