User blog comment:SpiritedDreaming/RWBY: Attack on Kevin Tower Defense Game/@comment-26397825-20161011121047/@comment-25936766-20161011125751

Not to mention, some were on the ships that got blasted. So not even all of his AKs managed to rampage in Vale/Beacon (though likely still massacred everyone on the ships).

Also, I was thinking.....right now, the Grimm spawn once in set numbers, every week. In the show, Kevin was making them almost every second. So, how about this: The Grimm spawn in very small numbers every day, the bigger Grimm like DS and Taijitu every few days, and the Beringel either still 1-per-month or 1-per-half-month.

The Silver Eyes, would cause minor damage but their main utility would be in paralyzing the Grimm respawning for a short time. Glynda would then be the main "cannon" of the good guys.