This is only a mere Custom Game option or feature for Firefight with the new Halo. Basically virtual money but this can also be shared by looking at the person you want to give it too hitting the D-PAD when looking at them FRIEND OR FOE but not AI. For Firefight there can be virtual money and you can think of gamemodes yourself if there was “money” involved in Firefight like some survival games out there.
However I wanted to jump to Custom Games already. Basically it will work for any gamemode and it is only an option if you wish. With the virtual money also comes a store. However, the store can be disabled if you do not want people buying goods via store rather just use the money the way it is. For example you can use this for Infection and if the store is enabled you can have a portable shop with you to buy better stuff by killing or doing objectives. Plus another option is a Hill Marker like “Shop_Only” and if its placed you need to be within the hill marker to use the store if it is spawned. Or for my RPG mode I made awhile back. In that mode it was basically a city and you made your own life and decisions with jobs, trading, houses, gangs, etc. With Currency RPG would be a bigger hit and much easier to play instead of trading “Covenant weapons/vehicles scattered across the map and bringing them back to the city to get weapons/vehicles from the armory.” Invasion also would be a great example with the Currency and Store bringing powerful gear to those who work hard for it. With the Shop you can change what you can buy like weapons and vehicles in the Custom Games Options and also how much each item is and it will spawn in front of you once you buy it like how it spawns in forge. You will also be able to change how much money you receive from getting kills and doing objectives.
Then the “Select Button”… in all Halo games it is just merely a button to see the lobby but it should be just more than that. It should be your “HUB” for the Multiplayer game your in. Not only is the leaderboards shown but also a satellite map (which displays the map but does not highlight your enemies) for the map your playing and the virtual store for your game. These options can also be enabled/disabled if matchmaking or map makers do not want this option in their game.
The Currency is just an option which should just at least be placed if people want it or not. This can open doors for many types of creative Custom Games because I honestly see this better off for Custom Games… REMEMBER THIS IS JUST AN OPTION IT DOESN’T HAVE TO BE PLACED IN CERTAIN GAME MODES.