*drum roll*

"Under promise, over deliver"
In engineering, and certainly in tech, there are unforeseen variables and competing priorities.

The only downside to that otherwise great advice is that you may not win contracts or gain pre-sales. However it's generally thought that in any sort of long run, it's better to have your customers a little bummed prior to using a product, and excited after using it, than the opposite, even if you have few customers because of it. Over promising and under delivering are signs of a business on its last leg, the equivalent of an all-in when you're holding no cards.

Also, I know very little about business.

The millisecond I bought it, not a damn thing else mattered except leveling it up. All the times I tried to beat Crota and, more importantly, the Deathsingers, and failed endlessly. Every single walkthrough video I found had half to all six players with Icebreaker and Galy-horn. I say "and" because since they were on the next gen consoles, their pause screen loaded instantly and could switch weapons in a heartbeat.

I had none of the "game breaking" weapons, therefore I had no chance in hell. So when that Icebreaker went on sale, I immediately purchased it and had only one goal in mind: shoving that entire fully upgraded weapon--and at least half of my shoulder blade--FAR UP THEIR ASS.

I finally had the equipment to walk past the "You must be this equipped to ride" sign at the bridge of the Hellmouth, and I wanted that POWER.

But hey, my stuff's fully upgrade now, so I guess I'll just use whatever piss-shooter I have to sacrifice my Bad Juju slot.

Everybody wins, and we get to work with what both our separate copies of Destiny does and doesn't do for us.

Buddy, I think you just went Full 343...

TBH, I'd rather have Bad Juju than Icebreaker for that fight anyway. Icebreaker is great but it's not automatically the most effective weapon for every encounter.

Anyway, your original point, that Icebreaker's ammo resetting after a cutscene sucks, is valid. I don't think it's as bad as the heavy ammo bug (since Icebreaker will come back eventually, whereas the heavy ammo is just gone forever), but it's not good.

I finally had the equipment to walk past the "You must be this equipped to ride" sign at the bridge of the Hellmouth, and I wanted that POWER.

Skill is what ultimately matters most. You don't need an icebreaker to beat Crota. You can be formidable with only stuff from the Vanguard.

I'm not saying that it's not a benefit to have good weapons, and perhaps hard mode is more demanding in that regard, but you can do it if you tailor your strategies around what your group has.

Truth be told, I do not use icebreaker at all anymore. The only time I used it was on Vault of Glass, because of the high impact, and the fact that the templar / atheon are vulnerable for short windows, which works perfectly with the icebreaker's regenerating ammo, yet small total ammo count.

However, for Crota on normal I was using LDR since it has as much power, yet more ammo capacity, and on hard Black Hammer. In fact, Black Hammer has completely replaced Icebreaker for me.

The bottom line, is don't get too caught up on having any specific gun, as the raids aren't designed in such a way that you NEED any specific weapon.