hangor doesn't have BM launch capacityWhat makes you think if the Chinese are building them 8 submarines with a BM launch capacity in some of them they won't give them an adequate reach BM or CM to go with it ?
Besides why do you think they're going in for a massive expansion of the PN for what with all those frigates corvettes destroyers etc they're getting from around the world? It's to create & protect their "bastion ," that's why.
Ideally they'd have preferred it to be in Gwadar when the PLAN comes to base there which could still be the case next decade .
cruise missles are always going to be limited in terms of payload they can carry.
what function does a little 5kt nuke on a 400km range cruise missle serve on a submarine?