A new ARMA is coming out(already in early access). They are saying it's a step towards ARMA 4.
I have mixed feelings on ARMA, the premise is good but the execution is lacking in many ways. The gameplay itself just seems lacking, the gunplay for example is fairly average and I'm not sure why because I am pretty sure Operation Flashpoint Red River is made using the same engine and it has far better gunplay. Other games on the market are better in this way as well, such as Insurgency and particularly Squad. Squad has amazing gunplay but it's multiplayer only and dealing with multiplayer is a pain and it only gets worse as people are only getting worse(they are just walking meme spewers now).
The gunplay in this trailer does not look great, but with luck the rest of the game will make up for it. I'll try it when it actually releases properly.
https://youtube.com/watch?v=AIervYhiEZ8