I'm just spitballing here, but since latest PLA AA missiles can be remote guided, is there anything stopping the PLAAF from modifying a ground based missile, strap 20 on a H-6k and practically create massive magazine depth in an air engagement? As those ground based missiles if launched from the air could easily achieve 300km+ ranges. This would also apply to potential PL-21 where the bomber can comfortably hang far outside of enemy fighter ranges and still cover the entirety of Taiwan in terms of missile range.
This is basically the inverse of NASAMs.
Far from a new idea actually. Isn't the US arming B-52s as basically AAM trucks.
H-6 don't have the payload capacity to really make this useful. Better to develop a ground up tactical sized bomber for this role. Also this idea was raised on this forum years if not a decade ago (just informing not to insult or anything) and if I recall, the concept has been around since Vietnam war. It was just much less technically feasible given limits of related tech back then. Sort of a ASBM/FOBS like issue decades ago when ideas were conceptualised.
A2A attrition is a staple of BVR calculus. No better mechanical way of achieving brute force advantage than to get something similar to a B-52 sized dedicated missile truck but instead of subsonic launch aircraft, have something that can lob at higher altitudes and above mach 1.