I'm quite worried about balancing the classes. Right now, from the information we have, it would seem Hunter is OP. But, this is Bungie, they're testing and tweaking stuff daily, and after the beta they'll see what's really OP, and how to balance out the game better. I'm curious as to how we'll use our abilities, are they on a cool down? Do we have to pick up something from the map to use it? In Halo, all the abilities were things to use on the defensive. That could be used aggressively, in the right setting/situation. Sprinting for running away, Armor lock for blocking that death blow, camo for hiding, hologram to fool your opponent, Jetpack to get away. In Destiny, these abilities, or atleast some of them are 100% for killing people. Golden gun, Super smash, Nova Bomb. If those are on a 30 second reset counter, that's going to be bullshit. Oh, I can become god-like every 30 seconds, or everytime I die, because my ability resets? I can one shot because I chose this class. I hope that's not the case. I hope there is something more to abilities, I don't want to kill a Warlock, knowing everytime he comes back he can just Nova Bomb me. Just like we have to control the map for power weapons, or power ammo, we should have to do the same for special abilities. OR at least, make it like killstreaks. Get X amount of points before you can use your special. I just hope Bungie knows what they're doing with balancing. It's the one thing I'm concerned about.

Let's not forget bungie may lower the OP'ness of some abilities like nova bomb

Destiny is a game built upon these features, so it can work.

It can definitely work if they do it properly.

adding more elements to the gameplay often helps balance it out, my hope is that all abilities will serve a nearly equal purpose other than dropshield, most of the armor abilities were pretty equal in Reach the question is whether or not the abilities that do damage all serve an equal purpose Titans vs Warlocks and Hunters (multiplayer playlist) would be cool