l had figured this out last year. The answer is basically UNCM and UNCR as expected, but you gotta set or unset Escape+Tequila’s Capture (0x4010000). Setting Escape hides the unit from prep screen, but it also sets Tequila’s Capture, which also sets Escaped…meaning you can’t bring a unit back unless you unset both. l go into detail about it in the following post, but that’s the gist of it: How to bar a unit from a chapter? - #14 by Kemui52