You may create a lightpoint vehicle and attach it to your shell:
_light = "#lightpoint" createVehicle [0,0,0];
_light setLightColor [0.7,0.8,1];
_light setLightAmbient [0.7,0.8,1];
_light setLightBrightness 0.1;
_light LightAttachObject [_Missile,[0,0,0]];
Not sure it will be seen at daylight.