Some waves will have objectives you need to complete, such as collecting treasures or defeating specific enemies. Also, you'll occasionally run into modifiers that prevent you from relying on the same tactics every round. You may have to use only melee weapons, for example, or limit yourself to head shots. And while you will face the mercenaries that dominate the conventional story, Survival adds plenty of supernatural opponents.

This won't be a radical break from the Co-Op Arena mode you saw in the second and third Uncharted games, but it should inject new life into a title that's already on some critics' short lists. It might impact Sony's bottom line, too. If Uncharted 4 has an answer to one of GOW4's best-known modes, you might be tempted to pick up a PS4 Slim bundle when you were otherwise set on an Xbox One S.