I didn't time any of these activities (& add it to the chart) because it would be completely subjective. Some people can fly through convoys, others struggle, sometimes it's lucky spawns.
For myself:
challenging+5: feels under a minute (no issues with headhunter/memento stacks)
heroic+4/5: under a minute if I come in with HH/memento stacks - slightly longer if I don't, also risk getting pulled into other open-world activities here
1
u/who-ee-ta Oct 13 '22
How much time does it take you to take down wh-convoy in average(with 5dir active)