Most players know that the Power Weapons are not created equal. There are 2 Tiers which, for arguments sake, will be classified as "True" Power weapons and "Partial" Power weapons.
"True" Power Weapons
-Fusion Rifle (Some Would Argue)
"Partial" Power Weapons
-Linear Fusion Rifle
In the March Update Bungie has said they are changing power ammo to spawn more often. While Quick play will relatively stay varied in the usage of power weapons, Competitive/Trials will not. In diehard gamemodes diehard players will use diehard guns. It doesn't take a PVP genius to realize that Rockets and Fusions will dominate Guardians power ammo slots.
All problems have a solution.
- Keep all current power weapons in the power weapon slot
- Divide them into two ammo types (PVP only)
- One type, the "partial" Power Weapons will have an increase ammo drop (similar to D1 special ammo).
- The other type, the "true" power weapons will have current/slightly increased ammo drop.
This compromise speeds up gameplay and provides more chances for "Hero moments" by increasing power ammo. At the same time it doesn't "True" power weapon spam.
[My english isnt perfect so you'll have to forgive any mistakes.]
In the TWAB they already said you'll be getting more reserve ammo for most heavy weapons, as well as primary/secondaries like sidearms and smgs.
The only thing that isn't getting more ammo are the swords, but most swords have around 30 swings anyways, which is pretty close to D1 in terms of ammo.