Hey remo!
I think that I found your problem! In the init_closeair.sqs, you have not defined that the resistance side can call in support. Change index number two in this line from "west":
_west_base_close_fixed_wing = ["CAS - Fixed Wing",[west],1,getMarkerPos "mCAS_FixedWing_West","mCAS_FixedWing_West","SNY_fixedwing" ]
to "resistance" like this:
_west_base_close_fixed_wing = ["CAS - Fixed Wing",[resistance],1,getMarkerPos "mCAS_FixedWing_West","mCAS_FixedWing_West","SNY_fixedwing" ]
or even:
_west_base_close_fixed_wing = ["CAS - Fixed Wing",[west,resistance],1,getMarkerPos "mCAS_FixedWing_West","mCAS_FixedWing_West","SNY_fixedwing" ]
and it should work!
Of course you will need to change this in every support _init_....sqs to affect whatever support function that you intend to request. Enjoy!
Wadmann