Historical records are not always correct. Most of the time they are written by the victors. Wiping 90% of a planet population with out using obital bombardment or nukes of some sort would impossible. The Nazi's found this out trying to exterminate the jews. Cassius Fett having suffer a humiliation on the surface of Cathar might have decided that orbital bombardment was is only chance of redeeming himself. The Mandalorians could have changed the there account to be great and glorious victory. It would be a few Cathar survivors account against the Mandalorian war machine. It is not like the Madalorians have never lied or murdered to protect there pride before.<br/><br/>how do people feel about that? creates a little question about the official record.