Wing Commander CIC

Yes yes, i know, i'm back just to ask this question. How did they bring down the Concordia? It's a dreadnought right? by the way, the WC3 dreadnought could ram the Concordia and still come out unscathed right? (i remember reading in Wing Commander:False Colors that the WC3 Dread is 22km long, that's 22 times the length of the concordia, right?)