If you are looking to play war games online, there are a few things in those kinds of games that may make you feel a little hesitant so you have to know what to expect before you start playing them. Many people would prefer to not play games that have violence, guns going off, or any loud explosions. If you would prefer not to get involved with those kinds of actions, then you should not play games that have those actions in it.
Even though it is just a game, many people would prefer to not get themselves involved with games that involve you trying to blow off someone's head. However, many people enjoy that kind of thing but would not become violent in real life. You may want to change the game so it can be available for all audiences but you do not want to let the game change you.
It should be common sense that when a game is involved with the war, then their will definitely be people with gun, bombs going off, and any kind of violence. The kind of violence you may find would be punching or kicking your opponents.