Extremely fun!
But despite the above comment, has a few flaws. Personally, I think the best episode in this series so far was episode 2, because it was actually a choose your own adventure. With this, you went back to the same fatal flaw of only having one good ending for each story (not including where you're stuck alone in the woods). Sure there were a bunch of funny parts, but for a lot of those, you had go down unneccesarrily long story branches where you just end up dieing in the end anyways.
Also, I played this game when I wasn't a member and I got some kind of M60 medal when Sage got the M60. Maybe I didn't do the situation right, but this time around, I didn't get the medal. Or maybe there was no medal and I'm just going insane. Meh, I'll just look again.
Overall, I love the series and each game has something awsome that makes it unique. Just look into making sure you have at least a couple different endings for each story. Cheers.