atm oure Carthyne Symposium looks like this
Success Chance: Low
Research Hydrodynamic Escape
No Ships Assigned
Perform Cybernetic Link Experiments
3 completions, 2 partial completions
Restrict RSL Activity
22 completions, 9 partial completion
I think, even if if the last 11 members who have joined the mission finish theire task - the Success Chance will still be low
but atleast Restrict RSL Activity is easy to do, and give you 3 Relic badges