T14 and t15 memory fragment

Now I finally completed 15th fragment.
I also still have Elder on T15.
Can anyone say, whats next? Do I need to have Elder influence before kill guardians? Or just kill them?
This questline is so fucked up and I don't want to fuck it even more.

(I've already killed guardians and shaper before, but I guess this stupid game doesn't count it)

Just tried this method



Spread the elder influence starting from basilic and the surrounding maps, sealed basilica before. Now he spawned on villa :/

Gaming is a process of getting to the end to simply end it all.

The trick is never getting there if you can help it.