Why not? America’s Army is virtually free and you get to gun down ethnic terrorists. Using the engine, a mod could be built to allow environmental activists as player models. It would be easier under unreal Tournament 3, which comes with modding/mapping tools pre-installed. UT3 is also better for vehicle combat, so you could roll a tank into a PETA office. Any other geeks here on FR want to help me? I’m no good at scripting, but i can map a little.
Go for it. I was having this conversation with some folks last night. There’s every manner of violent video games out there with blood, death, murder, etc. that society accepts and doesn’t bat an eye.
Market one that skewers their sacred environmental cows and there’d be outrage.