Problem is that a lot of your subclass quests force you into the crucible. I'm no great PvP player by any means. But when I can shoot someone at point blank range and they don't even lose shields or I get slayed by a shotty by someone that doesn't even show up on my radar and I see the after death red highlighted killer I know something is definitely wrong. I can't even count the times I've been killed standing on the other side of a wall. I've yet to figure out how some people have their supers charged in the first minute of the match. Makes trying to finish the quest line suck. Crucible needs to be unlinked totally from the storyline. Everything else should be able to be done solo if you so choose.