Just in case someone didn't see it in another thread, someone posted the report on the wiki:
http://wiki.battlemaster.org/index.php?title=Siege_of_Valkyrja&rcid=151511Total:
55 attackers (2160 Inf, 590 Arch, 39 Cav, 149 SF)
46 defenders (736 Inf, 194 MI, 70 Arch, 206 Cav)
Total combat strengths: 31340 vs. 15943
Averoth did indeed do some last-minute emergency draft/militia/recruit. And some troops, notably the Libero Empire, did not participate in the initial assault. Due to the commendable efforts of Grandmaster Bustoarsenzio, things went exceedingly well.
I can hardly believe we had
72 siege engines at the walls. Only a few units had "slightly overcrowded siege engines", and the fortifications were breached in a single round.