I think that's what by78 was refering to when he said ASW version. Because we previously had high res images only of the basic naval variant, without the radar. The variant with the radar is indeed the ASW version, as we can see it also has features conducive to anti submarine warfare. I think i can discern the dipping sonar as well as the torpedo pylons. I don't however notice the sono buoys. the fact the side doors are smaller also points to less room inside, which again points to lots of proprietary equipment inside. Which again points to a specialized role like ASW.