Point to me one AAA studio that doesn't have those. If you want to be 100% ethical you should only buy indie games, and I honestly don't fault anyone for doing so. I just buy whatever game I find good. Unless the company is literally funding nazis, LGBTQ+ phobia (like Hogwarts Legacy), or war crimes (like Escape from Tarkov, and I also did not buy BO7 until Microsoft pulled out of giving money to Israel), if the game is good in the area I care about, I will buy it.

There are many single player scenarios for arma. On top of the ones that are in the game.

It's still a decent game.

I can point to you several other games, many of them shooters, that are singleplayer. Like, you have the three modern DOOM games and ULTRAKILL just as an example. And like, you don't NEED to have it be new games? You can just buy old singleplayer military FPSes?? Like, just looking at my library, I have Arma: Cold War Assault, Red Alert 2: Heroes of Stalingrad, every Bioshock game, Half-Life 1 and 2, Black Mesa, Medal of Honor (2010), Crysis 2, Spec Ops: The Line...