DZAI (thanks Buttface) is a package that implements group and air based AI squads. We have tested this extensively and it works quite well. The AI are great at following players and the mission AI will call them in for air support.
Over the summer of 2015 we had DZAI implemented in a limited fashion – a few squads of ground-only AI with limited weapons.
As expected, some players loved it and some hated it. Do you want to see this enabled again? Let me know.