This is what I was working on pretty solidly for the last few days. A massive encounter where my player's keep was sieged by the Earth Cult.
I think it was about 85 enemies all up coming down on the keep who had about 18 bodies (7PCs) to assist in the defense.
Was a hell of a fight.
I think Hero Lab wanted to die on me. It struggled when loading in the encounter files haha but it slogged through and made it all possible.