With my clean and fixed 1.2 I'll can engage those rebels without CTD (Captain Akbar, Tuateros blabla,Captain Tydeidis).

IIRC the sprite fix for 1.2 was about Iberian troops, so try to install them another time. Are mini-mods installed?

If it does not work, upload a updated save and I'll can kill them for you.

XSamatan