Other than self defense and war, killing is wrong... then again there is a difference between murder and killing... even if anyone knows the Bible, look at the real commandmants, not translated crap... thou shall not murder... it does not say "thou shall not kill" as many people believe today, there is a difference, hence the justification of the crusades, ect... in any case that's neither here nor there...
Most people would realize a video game is fake, if they don't it's either, a total lack of parental supervision, or somone of a young age, but if someone in 5th grade doesnt understand a game is fake they have problems, lol...