>>4079174delta 3200 is a ~1000 iso film that is advertised as 3200 for its pushing potential (which is substantial). You need to find times and development regimes for 3200 and faster with your chosen developer. Strongly compensating and pushing developers such as microphen or atomal will get you more tonal range at such isos.
In any case, 3200 iso was almost certainly not enough for 5.6 1/125 at that light level which would have been something like an exposure level 2 or lower
