I want an extension and evolution of PT/CT's Spies vs Mercenaries. A classic mode like that needs to grace this current generation of gaming...or the next. Whenever they decide to release the next game.
Though if they do go with SvS, I just hope they don't skimp out like they did in Conviction. Co-op with a scoreboard and friendly fire enabled does not a proper multiplayer mode make, Ubisoft!