The issue is because I am virtually the only Enlightened agent, the Resistance (two agents in particular) really dominate the area. They constantly have their own 100K Mind Unit Mega field over the area and apparently they have virtually unlimited keys to the other remote portals. I take it out and minutes later it's back up. I actually got to the point of saying I'll just leave it up because it only gives them more points each time I destroy it when they put it back up.
This ended up being a pretty good strategy. Not only did it keep them from continuing to get massive AP and medals, it prevented not only them but other agents from throwing up other links and fields which could interfere with the mission, yet I could take out their fields with just taking out 3 nearby portals in my town.
The leader of the mission came to my town and briefed me on the mission. I just liked the thought of being part of a cool mission like this. Very similar to the mission I posted about much earlier. He then asked where I was on my Illuminator badge. I told him I was at gold. He then told me he'd save keys to the remote portals for me. After I take out the blocking field, I could try to meet him at the southern tip of the field and put up a final field. The first 17 layers were to be before the checkpoint. With me taking down the field immediately before the checkpoint and the southern tip being almost an hour away my field wouldn't be in the checkpoint if at all. It was very possible the remote anchors would be gone before I got down there. But I appreciated the opportunity and didn't expect it.
I made it down just in the nick of time and put up the 18th layer just as the Resistance agents were striking other layers in the area.
Here's a gif of the action:
Here's a screenshot of my field going up:
Here's a shot of the dog tag the organizer made for the dozen or so agents who participated.