I'm beginning to wonder if the reason they cut Zodd from the Boscone fight is this: The scene of Guts and Griffiths duel from movie 2 seems to have been animated very early on, as it's final form was shown in some early on trailers. Like maybe they animated it early just to put it into trailers. Then shortly afterwards they had an "oh shit" moment when they realized that Guts' sword is supposed to break before then and he should have had a different sword in that scene. Then they were so lazy, that instead of redoing a scene that they had already completed, they just didn't include his sword breaking in the Boscone fight. I just can't think of any other reason they would substitute Zodd for a flag toss, it's the most pointless, unreasonable change they made.