There is no entry for default civilian classnames to use on Khe Sahn for the civilian presence module.
essentially just need to copy the entry for
cam_lao_nam
for
vn_khe_sanh
class CfgVehicles
{
class Module_F;
class ModuleCivilianPresence_F: Module_F
{
class UnitTypes
{
vn_khe_sanh[] = {"vn_c_men_01","vn_c_men_02","vn_c_men_03","vn_c_men_04","vn_c_men_05","vn_c_men_06","vn_c_men_07","vn_c_men_08","vn_c_men_09","vn_c_men_10","vn_c_men_11","vn_c_men_12","vn_c_men_13","vn_c_men_14","vn_c_men_15","vn_c_men_16","vn_c_men_17","vn_c_men_18","vn_c_men_19","vn_c_men_20","vn_c_men_21","vn_c_men_22","vn_c_men_23","vn_c_men_24","vn_c_men_25","vn_c_men_26","vn_c_men_27","vn_c_men_28","vn_c_men_29","vn_c_men_30","vn_c_men_31","vn_c_men_32"};
};
};
};