I listened to their screams of agony after I set them on fire. I choked them to death on poison gas as they tried to advance on my position, stabbed them with knives as they peered through windows, and bludgeoned them in trenches with tiny shovels. I ran over them with tanks and blew them into the air with mortar shells.
I mowed them down in trenches with powerful machine guns.
I shot them in the head with sniper rifles. Over the course of a single weekend playing Battlefield 1, I killed hundreds of people.