Much like many Hollywood action movies, lots of AAA video games from huge publishers are basically giant vehicles for government and military propaganda. In order for military shooters to use as much realistic iconography as possible (accurate weapons, vehicles, branding, etc.) agreements have to be made with the military, which includes approving content. In addition to that, army recruiters use games as part of their efforts as well. It's all connected, and publishers are more than happy to rake in dollars without examing their contributions to our military industrial complex.