I took a look at your N7HQ. An old-timer returning to the game? Given your hours, the L10 Eagle made me ... 🙂
Okay, I'm going back to my #4 (in post #6)
The only Masteries you've completed are Squad Elite, and AR Mastery.
FYI, Squad Elite is the only one that doesn't reset when "completed" (well, that and "Mass Effect"). Every other one does. For AR Mastery it is completed when you achieve 9 of the group's AR challenges. Which are all listed as completed once in your N7HQ. Once you completed AR Mastery, those 9 got reset. That includes the M-7 Lancer (is that the "M 7 gun" you referred to in OP?). This allows you to get the Mastery multiple times. That's how it's supposed to work.
If that is indeed what you are seeing, all is normal.
Here’s the thing I know I didn’t play it on the first run for instance there are several guns that I have not even got in the multiplayer in Vittori and yet it’s still marked as complete it’s the same with the Squad I have an even completed gold extraction or even platinum extraction and and it’s still listed as complete
That's a little hard to parse.
Looking at your Squad Elite, it has 16 gold extractions, 5 Platinum extractions. Are you saying that you don't have even that many?
You actually haven't done any?
Or that you actually did complete (25 each) and it isn't showing that?
And I don't see which gun has challenge listed as complete (or even that has any points) that isn't already in your inventory. Or is your inventory wrong?
Do you have a specific example?
Here is a picture of the weapons that I got and that I haven’t got in the n7 list
