Try to get non - member items that can only be obtained on member only maps such as Ethan Kingly Attire and Skyhunter. I think that's what you can do in two days. I bot overnight and it took me 10 hours to rank 10 Skyguard. So two days is enough to get Skyhunter. It's a pretty cool armour. Colour customizable.
Katy Perry is <3
" You can only get smarter when playing with smarter ones. "