The Last of Us: Left Behind is set to launch next month, bringing with it some exciting new gameplay mechanics.

In a brand-new video interview (above), Naughty Dog discusses the introduction of "multi-faction combat," which allows players to use the infected to their advantage to take out hostile humans. It's a fantastic new gameplay twist that will most certainly add an engaging new wrinkle into the already deep and stellar combat system.

In addition, the studio has released a new trailer for the game, which you can check out below.

The Last of Us: Left Behind launches on February 14th, exclusively for PlayStation 3.

[PlayStation Blog]