I have tried on and off for the last 3 hours. Nothing. Says "room is full" or "timed out". I think the servers might not be turned on.

I am just bummed at how bad the game is, there is so little out for the vita, and the only first person shooter (the genre the vita is obviously perfect for) is trash. To answer your question, I bet it's just day one buggyness.

I can't because of my NAT type. I am really REALLY frustrated over this. I have been opening ports and trying to find what is wrong for about 5 hours. The single player is actually decent though and I can't wait to actually try it.

Nobody on NeoGaf has the multiplayer working either. It might not be your NAT type.

@StefanTheMongol said:

Nobody on NeoGaf has the multiplayer working either. It might not be your NAT type.

I believe mine actually is though. It says I can't connect because I have NAT type 3 and all my tests on the VITA keeps coming back type 3 and I found online some had the same troubles with Unit 13.