open metapeds.ymt
search for "cs_abigailroberts"
replace these lines
META_Base_ = 'META_Base_mp_female'
EXPR_SET_ = 'EXPR_SET_BCUSTOM_FEMALE' (NOT EXPR_SET_MP_BCUSTOM_FEMALE, i had issues with the had placement using that expr set. not sure why.)

you can give her a custom loadout as well by creating one for her next to the other gang loadouts in Loadouts.meta and put it in her "Defaultweaponsloadout" slot in metapeds.