The new crucible update increased the amount of time it takes for special ammo crates to respawn, decreased the amount of ammo received, and changed the locations of the crates. The new locations aren't an issue, it will just take some time to get used to them. However, the other features of the update cause special ammo to feel far too scarce.
Because other players may have taken the ammo before you could reach it and it takes too long for the next crate to respawn, it is now possible to play the majority of a match without special ammo . If you are able to get the ammo before everyone else, you will only receive a fraction of what you're used to finding in the crates. Not only does this hinder the crucible experience by limiting your best weapon, but it also makes the match feel like it's focused around competing for ammunition rather than the true objective.
This update should be taken away or at least altered so it can no longer take away from the PvP experience. Blasting people with over-powered weapons was the best part of the crucible and it still should be.
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Being able to use consumables wouldn't be fair; because you get all the ammo