Buddy & Swarming BVR engagement tactics being developed between groups of J20s to exploit cooperative stealth behaviour for active/passive observation and LR engagement of variety of A-A tgts. A kill box of 200 x 200 km likely to have 4-6 J20s to exploit large NEZ of the PL15 
A J20 'wolf-pack' will be supported by wide area intel & full spectrum early warning vide space, air & land based assets as part of a well laid kill chain. J20's tactical use will be best exploited in pre mapped engagement zones as part of PLAAF's 'Large Area' engagement doctrine
Mind you, the J20 is an integrated element of the PLAAF's Anti Access/ Area Denial (A2/AD) strategy, probably the tip of the deep layered A-A/ SAM, 'Large area' air defence projection, especially in the SCS zone. The J20 will not operate out of this zone in its present avatar
As part of its Manned Unmanned Teaming (#MUT) initiative, PLAAF aims to integrate the Anjian and Gongji UCAVs with the J20 as a #LoyalWingman. Will increase Ops outreach of the J20 far beyond existing capability around sanctuary zones, to deep inside contested airspace by 2030s
