Loot System like Rocket League or League of legends and Brawl Stars

Maybe i have a solution for incrase Population in Halo infinite.
343 should icrease Pieces of armor, Aesthetics for weapons, Airbrushes findable in more loots.
Then they should add Keys for open these Loot with a system like Videogames mentioned in the title.
And ManyAesthetics Item could be bought with real value or free with Virtual Money earned playing.
Maybe they should add Items only buyable with real value.