I need a way to show all of the items players have picked up in the map so that it's easier to know what they have. Is is possible to show it on the scoreboard or just on the side of the screen yet? Kind of like MoTD or any of the BO3 maps.

We don't have a tool for editing Black Ops 3 Lua - and we might not even get one.
So the only thing you can do is try to script it in using GSC

I think you can make a temporary representation of how many items you have picked up by doing something like this:

IPrintLnBold(PartsCollectedVariable);

For example:

function init()
{
partsNeeded = 3;
partsCollected = 0;
thread partPickup();
}
function partPickup()
{
partTrigger = {"partneeded","targetname"}

     while(1)
     {
     partTrigger waittill("trigger",player)
     IPrintLnBold(partsCollected);
     }

}

I think you can make a temporary representation of how many items you have picked up by doing something like this:

IPrintLnBold(PartsCollectedVariable);

For example:

function init()
{
partsNeeded = 3;
partsCollected = 0;
thread partPickup();
}
function partPickup()
{
partTrigger = {"partneeded","targetname"}

     while(1)
     {
     partTrigger waittill("trigger",player)
     IPrintLnBold(partsCollected);
     }

}

Your syntax is wrong there (missing semicolons and you're getting the trigger wrong)
Also you have a local variable called partsCollected that isn't accessible in the partPickup function.
On top of that, your code only works for one part, so no point in a while loop.

Daym it was an example i didn't think it would work anyways. I didnt't feel like making a real working script. Of course it's wrong. Lol.

Daym it was an example i didn't think it would work anyways. I didnt't feel like making a real working script. Of course it's wrong. Lol.

I appreciate the help but I wanted to make an actual image on the HUD visible for the player. Having just text pop up makes it look... "unprofessional"

Very true. Well, you could try contacting Nate Smith Zombies. He made custom perks, which involve images going on the screen when certain variables are true.

I appreciate the help but I wanted to make an actual image on the HUD visible for the player. Having just text pop up makes it look... "unprofessional"

JBird gave you the answer.

We don't have the menu/hud editing files, and with 3arc going in and out of contact we might not get them. Although, you should be able to do it via gsc, see if the perk shaders code can do any of it.

We don't have a tool for editing Black Ops 3 Lua - and we might not even get one.
So the only thing you can do is try to script it in using GSC

Out of curiosity is there a reason why they don't want to give us that?

Out of curiosity is there a reason why they don't want to give us that?

Probably licensing as it's Lua not in house