These points are multiplied by the chapter's difficulty level, and the number of survivors who lived. If all survivors are killed, the survivor team only earns points from their progress through the chapter and the difficulty multiplier. The victor is decided by which team scores the highest during the campaign.
The specified elements are scaled by the chapter's challenge level, and the count of those still surviving. Should every survivor be taken out, the survivor group will earn points solely from their journey through the chapter and the difficulty factor. The victor is decided based on which team accumulates the most points during the campaign.