According to ESRB, this game contains: Strong Language, Violence
Parents should be careful before buying this for their children. It's an extremely violent game, even though there isn't any blood to speak of, and the way it piggybacks off of current events may make it worth a discussion. In attempt to be 'realistic', there's also enough harsh language to give many parents pause.
Rail Shooter fans should definitely check this out—there isn't a lot of movement in the genre right now, and this could be just what you're looking for.
Deaf and hard of hearing gamers will be fine—every bit of important information is written onscreen, and there aren't any audio cues of note.