I've heard the Adventos was available in an early mission pass. I've been looking to see if it ever comes back in a mission pass and I've been checking fresh finds for it. To my knowledge, we've never seen the mohawk, but I can dream. Just wondering if anyone knows anything about the mission pass schedule. From what I understand, the mission pass didn't roll out in the JP server environment until later, so I don't presume we can use that as any measure of prediction. I've also been on the lookout for the half-face gas mask. I did see it once but didn't have the SG for it and haven't seen it since. Can't seem to find a pic of it anywhere.
Edit: Found it!