Mckpave, You said that the belly turret is used to target the gun. Is it also used for missile jamming? The designation "Guardian" is pretty well established as being the missile jam turret which looks very much like what's in the picture. If it is, it would bring up several concerns. 1) What happens on missile warning indication if the gun is in active use? 2) The IR sensor in the turret is very narrow field of view so that it can track incoming missiles at long range. Is the same camera appropriate for both uses? 3) The MTBF of this type of system has been worryingly low to date and it is very expensive. Perhaps Northrop just repurposed the turret and put in a different IR camera, but it seems odd that they wouldn't change the name. If it is perfectly suitable for both purposes simultaneously, they should add that to their marketing material.
No, same name, different manufacturer. You are referring to the Northrop Grumman AAQ-24 DIRCM "Guardian" system built by NG. BAE just happened to use the same name for the gun system, not even close to the same thing.