And how am I supposed to the vault of glass if I only have a rare primary?

You get a commendation after hitting rank three and it's a guaranteed reward for leveling your rank up after rank 3

How can I grind when I get an error code before I am even done with the mission.

The devil you don't has a very small amount of impact. Impact range and stability are the only stats I care about.

Not a big auto rifle guy. I like as much damage packed into each round possible, and adaptable to most ranges.

I am decent in iron banner, plus loot drops in raids.

Also, name another sci fi mmo rpg shooter with the same weapon mechanic as destiny or better. I thought so. I am not saying destiny is a horrible game. I am stating that randomized drops would head better results. It is no longer random if it always gives you the same thing, especially if that thing is always absolutely horrible. The definition of random is unpredictable. If I can always predict a pulse rifle, it is not random any more is it.

In fact, maybe destiny is trying to make me play more. Grind more and more for that hand cannon, but all I will get is pulse rifles. And I will keep grinding with a weary determination, then when destiny two comes out, I will never have gotten my legendary hand cannon, and therefore never been able to do the vault of glass, and therefore, the word of Crota. Then how foolish of you "play a different game" as if. Plebeian minded fool, there is never going to be a game like destiny. I cannot explain my love for this game. Addiction? Possibly so. It just soothes my soul and very being. Destiny has or will have everything I want out of a game, except a good loot system. That is why I play destiny. Don't ever say something so blind again. It proves to me you are but a half wit. There is no "different game" if there were I would have swapped long ago, but unfortunately, there is nothing even remotely similar to destiny. The game is in its own genre, and I favor that genre.