I've been told that weekly missions are eventually brought back as archived ones in your mission list. What I am wondering specifically is sometimes there will be a weekly mission here and there that gives a ship mod that is upgradeable every time you complete the mission I believe up to 500% or 600% or something. Since I have not seen any of the current race chains having anything like this(usually they will have a ship mod that you get 3 or 4 of for completing that sequence) Can you only get the upgradeable mod when the mission is put as a bi-weekly one?

the current mission chain is still ongoing. not sure how how many more mission will be in this chain. but once its completed it will become available in ur usual mission list. but it will start from the beginning so you will have to work through it again / or complete partly done missions to get to the ship mods.

Just to clarify, your mission progress is saved. For example, if you complete 6/10 on a mission while it's out as a weekly, then it'll stay like that when added to your mission list.

The upgradable modules are a relatively new feature - The only thing that changes about a mission when archived is it's no longer at the top of your list. Everything else stays thr same.

Will you be able to do it all in one go or will you have to wait like 10 days or whatever the amount is to finish the mission?

This is the first time we've had "Daily" Bi-Weekly missions, so I do not know.

Well, they're dailies and they'll stay that way. So you'll only be able to complete 1 completion each day, and when that one finishes, 1 of the next. So it will take a number of days (of course depending on how many you did as they were weeklys) to finish the whole chain - and longer if the last mission (there's always 1 that isn't released as a weekly and is only available upon completion of all the rest) is a daily - please no, please no, pretty please no...

It's to prevent Auto ranking, like what most people do with the Talth.