I'll make this short and sweet, like it if you want. I'm sure most will agree if not all....
We first need a way to check our faction status without going to the tower i.e. able to check it in our menu, like our bounties.
2ndly and lastly for this post... I'd personally would love a shooting range section added to the tower to test new guns and gun engrams. I'm sure this would be tricky to dev in... But not impossible.