In the context of the "Hummer UN V1.0" topic in the FS25 Vehicles section, adding a machine gun mounted on top of a Hummer would certainly bring a militarized aspect to the vehicle. Such a modification would significantly change the original purpose and character of the Hummer. It's worth considering how this modification fits within the broader context of the game and its themes. When incorporating weapons into vehicles, it's important to approach the topic with sensitivity and awareness of the implications it may have on gameplay and the overall player experience.