//Passing an empty types Array will completely disable the custom database and switch back to the default. (list of allowed groups, taken from cfggroups)
[bIS_ACM, ["RU_InfSquad"]] call BIS_ACM_addGroupClassesFunc;
Will spawn only russian infantry squads look up the allowed groups to add more just add it between the Ammo and type of patrol commands seemed to do the trick for me