Call of Duty warfare would also cost a ton of lives—enough that, if it went on for six days, there would be no humans left on earth according to Vsauce3. Really, getting into the nitty gritty details of how many (fake) resources we use in Call of Duty is intense and ridiculous: thank god it's not real!

Of course, Call of Duty not being real doesn't mean purchasing it can't be a moral choice with real-world consequences...

How Much Would Call of Duty Cost in Real Life? [VSauce3]