The third and final factor as to why Sheera was able to achieve such a mindlessly awesome massacre was because of the colour of the mechas assigned to the first graders.
Yes. Colour.
The first graders were assigned the colour black.
And as such, whether or not we were powered down or powered up, our armor would remain the same colour.
Sheera Lin shamelessly took complete advantage of that fact by clearing out the dead mechas on the battlefield, and replacing them with her own live army!
When the gifted kids surveyed the trap, the first thing their "experienced" eyes looked at were the blindingly eye catching three hundred heavies atop the plateau, and they barely gave the two thousand five hundred "blackened" mechas a cursory look.
Of course it was more than understandable for them to do that. It would take a very experienced, battle hardened general to be critical enough to study the state of the dead soldiers littering the battleground.
