I cant seem to get them to work, this is how I have tried it on an empty map;
create infantry player
place support requester
place support air supply virtual
synced them together, requester to air supply to player. tried different combos
preview the match and there's nothing in the menu, I left out signal flares etc, and I left the vehicle box blank for default and I tried different class names of helicopters but nothing still.
I'm not sure what I am doing wrong.
interestingly I can get the call artillery module to work, do I need the helicopters DLC for the support module to work?