Command "allPlayers" has just been added for the dev branch:

https://community.bistudio.com/wiki/allPlayers

"magazine setMagazineAmmo number"

Is this Dayz command? do you have a link?

It is a DayZ command, but there are no links to a wiki or so. All the commands I posted here, I found looking at the DayZ source code. You can find it e.g. in

modules_dayz.pbo\scripts\event\event_ammo.sqf

the reason I asked was because how you're supposed to know to which magazine to add ammo? For this you need to know exact id of the magazine and AFAIK this is WIP in Arma 3, so not really usable.

It's supposed to be used on magazine object - e.g. mags laying on the ground - not for mags in the inventory. In the mentioned script it's used to minimize the amount of usable rounds in a mag when it's thrown into a fire (backed by some random popping sound when a bullet explodes by the heat).

In Arma 3, I'd consider this useful for instance to spawn mags with a custom amount of rounds, because AFAIK you can currently only spawn full mags.

"because AFAIK you can currently only spawn full mags."

You sure about that?

https://community.bistudio.com/wiki/addMagazineAmmoCargo

"AFAIK" ;-)

To clearify, by "spawn" I mean <i>createVehicle ["someMag", ...]</i>.

Can you perform the same thing with the GroundWeaponHolder as with an ammo box? If so, my question would be, why they had to create a special command for DayZ. Plus, there could be cases where you might wanna change the amount of bullets in an already existing mag.

"there could be cases where you might wanna change the amount of bullets in an already existing mag."

see

"For this you need to know exact id of the magazine and AFAIK this is WIP in Arma 3, so not really usable.
"

You can change ammo in loaded mag, since you can id as the mag loaded into weapon.

"To clearify, by "spawn" I mean createVehicle ["someMag", ...]."

It will still need to create weaponholder, so might just do it yourself.

To update this a bit:

ArmA 3 allows to <b><i>addMagazine</i></b> with a custom number of rounds, so this could be used as a workaround for <b><i>setMagazineAmmo</i></b>.

The ArmA 3 command <b><i>magazinesAmmo</i></b> returns all rounds for all magazines on a vehicle, grouped by class name. But it doesn't say anything about a single mag, like <b><i>magazineAmmo</i></b> does in DayZ.

"_rounds = magazineAmmo magazine"

What is magazine param? Object? Then you can forget about it as Arma 3 has no such mechanics yet. String classname? Then how do you expect engine to understand which magazine you want ammo for if player has several mags with the same classname?