Destiny has its problem, the story is kinda uncordinated and theres not much of it, only 4 modes available in the crucible, no capture the flag or anything like that, AR's are godly in the crucible, no matchmaking for raids or story missions.... But damn, this is a fun game to play. I know exactly what you're talking about, I'd just found the cave on youtube, showed a friend, their were two others that just randomly joined us. We're laughing at how the enemies can't even get out of the cave, and then suddenly this happens. And we're like, what, did bungie already sneak something into the game to discourage this, loan behold we find out later that it was just a natural part of the game. But we're like, wait, they're throwing more enemies at us, a lot more, and they're tougher and challenging and interesting, and we're like, ARRRRRRHHHHHHHHHHGGGGGG!!!!!! Hell yeah, give us more, it was a blast. I do hope they make some major improvements as time goes on, but even still, the game has challenge and rewards you for what you do, and if its a cheap bastard, well, you still get marks and rep and strange coins and motes of light, so you can buy what you need. And don't feel bad about buying, that means you put in the time. I've had two bounties on my hunter, just got invective to day and love that shotgun, still working on my pocket infinity, but that thing requires you to break down 10 rare fusion rifles, easy, but can take a while.