Tips on making a stealth defender NPC?

Title. Trying to set up an ambush using heavy stealth systems, and there's no stealth defenders! You've got stealth Support, two strikers, and a pseudo artillery with the Operator running Fade Generator. I get that it's semi counterproductive, but I'm trying to make it as effective as I can.

Also realize that I can slap a Mirage and a Barricade into position but... it feels wrong.