Well I've got an Airstrike script from MrMurrays Editing Guide. Should also work for Arma 2. You only have to change the plane and the pilot i think.
Code:
setfire=true;
titleText ["Click on the map to set your firedirection","plain down"];
onMapSingleClick "ASTarget setPos _pos; setfire=false";
@!setfire;
"Firedirection" setmarkerpos getPos ASTarget;
onMapSingleClick "";
titleText ["", "plain down"];
;=========DEFINE=======================
_dropPosition = getpos ASTarget;
~0.5
_dropPosX = _dropPosition select 0;
_dropPosY = _dropPosition select 1;
_dropPosZ = _dropPosition select 2;
~0.1
_planespawnpos = [_dropPosX + 3000, _dropPosY, _dropPosZ + 1000];
_pilotspawnpos = [_dropPosX + 3000, _dropPosY, _dropPosZ + 1000];
;=========CREATE=======================
_PlaneG = creategroup WEST;
_plane = createVehicle ["AV8B",_planespawnpos,[], 0, "FLY"];
_plane setPos [(getPos _plane select 0),(getPos _plane select 1),900] ;
_pilot = "SoldierWPilot" createUnit [getMarkerPos "Firedirection", _PlaneG, "P1=this"];
_Plane setVelocity [100,0,0] ;
~0.4
P1 moveinDriver _plane;
P1 setDamage 0;
P1 action ["gear_up", vehicle P1] ;
_plane flyinHeight 100;
_plane setSpeedMode "full";
#CHECK
P1 doMove getPos ASTarget;
P1 doTarget ASTarget;
P1 doWatch ASTarget;
? (_plane distance ASTarget) < 1500 : goto "DROP"
goto "CHECK"
;=========FIRE=======================
#DROP
_i = 0
_plane flyInHeight 100;
_plane setPos [(getPos _plane select 0),(getPos _plane select 1),100] ;
~13
#FIRE
_i=_i+1
_plane fire "BombLauncher";
~0.2
? _i <= 6 : goto "FIRE"
;=========FLY AWAY=======================
ASTarget setPos [0,0,0];
"Firedirection" setMarkerPos [0,0];
_plane setSpeedMode “Full”
~4
_plane flyInHeight 300;
P1 doMove getPos ASTarget;
#Check2
_plane setDamage 0;
P1 setDamage 0;
? (_plane distance Player) > 2500 : goto "ENDE";
goto "Check2"
;=========DELETE========================
#ENDE;
deleteVehicle _plane;
deleteGroup _PlaneG
deleteVehicle P1;
exitWith
Note: You have to put an empty Heli-H on the map called "ASTarget", and you have to place a marker called "Firedirection". If you want the Airstrike to hit a fixed position, just delete the setfire-part and put the "ASTarget" on the position that you want to hit. Hope it works...