Yeah the freezing is a huge problem. It's happened to me so many times playing Predator that I'm amazed it hasn't screwed me out of more matches than it has, to be honest. Most of the time it's pure luck that the fire team isn't looking at me when it happens, because it feels like it's literally every other match or so that somewhere near the end it'll just lock up for about 5 seconds or more.
Good to hear about the new map though. Fingers crossed we might actually, finally get one next week, assuming that's when they're going to drop this month's free content.