Uncharted has the game play for multiplayer, shyt plays a lot like gears.breh, i'm not saying they should tack on some BS multiplayer mode. y'all keep going from 1 extreme to the another. i'll go back to the uncharted series. dudes originally said the game didn't need a MP, then part 2 came through with a MP that crushed buildings. had varied modes, a great co-op campaign, and it wasn't just "tacked on"
Uncharted basically boils down to a linear point a to point b shooter. One of the best but still very simple. The type of game that benefits to most from multiplayer.
I don't think sandbox games translate that well but anything is possible if games like dark souls can incorporate a unique mp experience.
It's possible but I'd much rather the single player be 10 hours longer instead, if I had to pick between the two