A medium ranged, SPAA platform, built off of a APC-6 . . .
These are included in AA batteries used by the ROC. In each battery, there are; 4 SPAA-1Bs, 2 SPAA-2B, and 2 SPAA-3As. The battery is accompanied by 4 support vehicles . . . one radar, one communications, one command, and one transport. These batteries are also often followed by 1-2 transport trucks.
Two SPAA-1Bs are allowed to work with neighboring units, whilst the other two are used to defend the vehicles that are armed solely with missiles from CAS and other low flying craft. The other vehicles in turn, defend the SPAA-1B and support vehicles from threats that are too high or fast for an SPAA-1B to kill.
Most often, these batteries are used to defend; cities, bases, and AFVs.
The SPAA-1Bs are also allowed to follow with armored units and aren't included into a normal battery. If this is the case, six SPAA-1Bs will operate with 3 transport trucks as a battery. These operate along with our fighters and other units to make very hard to penetrate air defense net work.