Which is ironic given this question. Some real world tragedy happens, the next logical step is that we ban and remove depictions of similar tragedy from the media? Come on.
But here's the thing, it's not a "similar tragedy" at all (one can obviously also point out, 49+ people have fucking died, let's not call a video game a "tragedy" in-line with that). The terrorist mass shooting in the news just now was a terrorist going and opening fire in a mosque with some fucked up manifesto. MW2, released in 2009 I might remind everyone, has absolutely nothing to do with that on a contextual level. Due to the release date, it's also not one of those situations where a game is set to release when a tragedy occurs and is possibly delayed or changed out of respect. See MGS2, or Motorstorm.
The leaps being made from this to a current real-world tragedy are opportunistic and honestly, as I said earlier, incredibly callous.
If everyone uses their brains, it's quite clear this level in the greater context of a whole game, MW2, can be looked at through the lens of the intent of the full package. Its story, its setting, what it is trying to achieve (which
can be critiqued). Whereas, some dev trying to get "School Shooter Simulator" approved on Steam, might just be looked at slightly differently than every other piece of adult media, which may also contain scenes of violence, even against unarmed targets.
I honestly despair at some of what I'm reading in here, but maybe it's simply me thinking using this tragedy in the news to springboard into talking about No Russian is the height of intellectual dishonesty and bad taste internet brawling. No Russian was debated when it came out, just like every GTA release has some fucked up scene people ask has it gone too far (GTA5 with the torture scene). Okay, those conversations can happen, but springboarding into them off the flimsy backing of this mosque shooting is simply opportunistic trash.