Sat Nov 16, 2013 4:22 am
I read in another thread, either on this forum or the Matrix forum, that to promote a general he must be in a stack by himself. I believe the workflow is: create a separate stack where the general is the only unit, push the promote button, then place the general back into a stack of your choosing. He should promote during the next resolution phase.
Just confirmed this on the AACW wiki; see FAQs, tip #6; don't think promotion mechanism has changed from AACW to CWII.