Look in the Addons/Sarge/Map_config folder and find SAR_cfg_grps_chernarus.sqf
Then Look for the code about 3/4 of the way down that looks like
// define your static air patrols here
//
//Heli Patrol NWAF
[SAR_marker_helipatrol_nwaf,3,true,120] call SAR_AI_heli; <------...