Fear not fellow Xboxers, I was dumb enough to buy a PS4 and I got in on the Destiny Alpha...you didn't miss a thing. There were random missions that felt like grinding because they all boiled down to "Kill 10 enemies"
2 missions, yes 2, just 2, in an environment about the size of a Battlefield map (on Conquest Large). Level cap of 8 and you START at 3.9. Yep, you start about 100 XP from level 4.
It was a total joke, PS4 owners got shit