In a scene with vets talking about their lives and how they are off-track, one or two of them have problems, implied because of the things they experienced while deployed in the middle east.
There are something like 30 deaths on-screen by gunshot and a few by knives. Some bodies are in pretty bad shape when it is done. It could be considered excessive for an action movie.
Constant misgendering in the first part of the movie. Not sure why people are marking "no". For instance men are referred to as "your girlfriend", and other remarks that are meant to denote femininity as insult.