It took me forever to figure it out! It's in the Ski Lodge Attic. Hope this helps you!
In The Attic on the left
You go to the couch in the ski lodge attic.
Go to the Lodge Attic and waddle to the red couch. Then click your spy phone when it flashes green.
Press START after plug-in in a secondary controller and it opens the co-op window/options.
The current field op -as of April seventh- is in the lodge by the ladder. There should be a suitcase and if you click on it the field op is right there. It is difficult so be patient. I will post the newest field op every time it comes out! :)
You cant find Protobot on a field op.
The first field op came an went. This is the 107th field op going on. Well, according to my history, the first ever field op was going outside the nightclub in the town and stand near the big 'S'.
Field Op 44 cannot be completed it is a field op of the past
For Field Op No. 33, take a box portal to the box dimension.
In the 5th field-op, you are suppose to find a dangerous microphone that will explode and ruin Music Jam. You can ONLY complete this field-op on Music Jam day. The microphone is at the forest.
you have to match the shapes with the other ones and there you go! you got the medal for the field op!
LOOK FOR IT AND BEAT IT! However, please delete this question since field op 2 is no longer out.