BOIII Vanilla is an external BO3 Client that mitigates issues with the traditional steam version. This includes the hacking issues, FPS stuttering (due to a steam update that pings the server to check for DLCs), and more. This also emulates an online environment, allowing us to access features like variants, custom emblems, and more entirely offline, even giving us the ability to share the save files with eachother. This is a modified version of an other client known as the BOIII Ezz client, which is pretty well known. The Ezz client, however, is banned from campaign speedruns as some of the features meant for multiplayer crossover to the campaign and could potentially be exploited. The purpose of BOIII Vanilla is to pretty much just "Vanilla-ify" the Ezz client.