In talking about the Splinter Cell franchise, fans are quick to bring up the Spies vs. Mercs multiplayer mode, and for good reason -- it rocks! Players are either a spy presented in third-person view or a first-person, gun-toting mercenary. It's a winning formula that's worked well previously and should still be a great deal of fun in Splinter Cell: Blacklist.
This trailer runs down the basics should, for some curious reason, Blacklist be your entry point for the series. Be warned: some people are alarmingly skilled at this mode.
via destructoid http://www.destructoid.com/how-not-to-die-in-splinter-cell-s-spies-vs-mercs-classic-257150.phtml