Especially now days since mocap is involved in most games. It’s one thing to be in a booth recording your lines and another needing to actually act out the scenes while delivering your lines. Both can be physically taxing in their own ways.

It’s not so much how much of the script has you actually yelling, as so much the recording process. Each line is never done in just one take, as in they say the line and that’s it move on to the next. They gotta repeat the lines over and over, so those few screaming lines become amplified through the multiple takes…

No it’s not. That’s the most damaging part of voice acting. Their jobs literally depend on their vocal cords. They want to have a safety net in place. It’s one of the most logical of their demands, really.