To add to hairyeng's remarks (I must know you hairyeng!), during the Falklands the MR2 carried a retard 1000lb and cluster bombs (BL755?). A test was carried out to assess the suitability of the aircraft to carry the Paveway LGB (one Sunday afternnoon at Lossie IIRC) but I don't know if one was ever actually carried. The Harpoons had to be carried internally because of directional control considerations and as you know the existing hardpoints were utilised for the AIM 9 fit. Harpoon was never carried on the wing pylons.
They were interesting times.
YS