Sometimes during the reccee, the situation can become too hot for comfort and fire support becomes a necessity or you run out of ammo and need a supply drop. The support can range from aerial bombing and attack choppers to supply drops and tank/infantry assaults. Vectoring and coordinating the fire are important to familiarize with in order to utilize their effects to maximal extent. Below is the list of currently available support fire and logistic options.
To Vector support, one must use the radio; you can read about the radio here.