TranZit Nav Card Very Interesting!?!?!?!

[xTRISKITx]

So today i was playing TranZit for the first time since yesterday and now i have 2 nav cards instead of one. I never picked up another Nav Card besides the one at the back of the bus depot. Has anyone else noticed 2 nav cards in their inventory now?? I wonder how it got their? I think maybe Treyarch is gonna be adding one to our inventory every couple days until we get the one for the nav card reader that actually works?? This is just a thought but I'm interested to know what you guys think?

[xTRISKITx]

I actually just found you unlock a nav card once you hit a certain round i think for me it was between 15-17

[xTRISKITx]

now i am pretty sure you get the two other nav cards from the easter eggs. One for doing maxis side and one for richtofens

[Cyberfire]

I picked up a second one the last night after using one of the denizen teleports. Literally no idea how I did it!

[Jeager1999]

I want to be perfectly clear on this. So if I was to build the Card Reader, it will be there every time I play the Map?