i had only a very quick look at your miz... one quick thought...
your first trigger might be unnecessary - it will continually turn flag 1 off as you will always have part of your red coalition outside of zone gali.. I'd delete that and then turn flag 1 off when you activate Russia group respwn gali...
thus if your first trigger is always turning flag 1 off, your continuous MIST respawn trigger never has a chance to validate... im not even sure you need the flag 1 = true for the respawn action... i'd try continuous, no condition, do script.
.. i edited it but didnt have time to test it.. try the attached. Mission 1d0o0m edit.miz