I would but Im on PC, careful who you hook up with, most don't have the stamina to last an hour long mission and bail out before the end, getting you kicked out in the process.
Would gladly join but I'm on PC as well. It's a little sad that community isn't too active these days, so it would be hard to find another 3 players. And btw, if you're host of Faction Mission and somebody bails, race continues normally so you can finish anyway.