Speculation about Archon Hunt and Host Migration also an exploitation based on these speculations

[SherAznable]

Speculation 1: If any one of the Tenno got a Tau Forged Shard all the Tenno in the squad with same Tau Forge chance will also get the Tau Forge.

For example, all 4 Tenno has 20% chance of dropping Tau, the result will be all 4 Tenno will get Tau simultaneously if anyone of the squad drop the Tau.

Speculation 2: Host Migration after killing the Archon and extract, the host rejoin the squad right after the extraction can still claim the reward.

 

Exploitation based on the above speculations: King Crimson

If all of the squad has same Tau Forged chance, the host Alt+F4 to exit out the game after killing the Archon and the rest of the squad extract and see what's the result and report back to the migrated host that host can choose to rejoin the game and claim the reward or not. By repeating these processes that host can 100% get Tau every week.

[lonnstyle]

If that is the case, then probably it is caused by a common random seed(something like timestamp of mission start time or so)
Changing the random seed to sth like timestamp of mission end time should be able to solve the issue of "reporting back"