Actually I was referring to the Fall of Tenochtitlan where it seems that there were a huge deal of civilians. Although that was a damn good description of events you gave if I may say so myself.
@ Huang Caesar more modern scholars doubt that Cortez truly had 100,000 natives, where it was already mentioned that many of his allies died of the same diseases afflicting the Aztecs and the warriors that these peoples had most likely didn't number that many. Newer and more believable sources put Cortes' army at 60,000 max with the Aztecs only ever using up to 100,000 men at one time against Cortes (rather than the traditional number of 300,000). About Otumba I saw one estimate give the Aztecs about 30,000 men in that battle, which I suppose sounds decent enough (the Aztec army that invaded the Tarascans was purportedly the same number and this wasn't considered very large).