So, let me get this straight-Russia invades the US, England, France and Germany, and even uses WMD's (chemical gas attacks) on major cities in England, France and Germany, and everybody, fucking EVERYBODY just forget that they have nuclear weapons?
What the fuck?
How do you expect me to not notice this huge, gaping plot hole, Infinity Ward? You already blew up about 3 nukes in my face throughout the series, so what exactly is keeping every single country from using them?
Also, why did the Russians invade a foreign country based on information given to them by a terrorist, and not just a terrorist, a terrorist that just blew up one of their airports, no less?
Why does everyone seem to think that having a CIA agent in an airport massacre justifies all out war?
How come the entire network of computer and television transmission can be brought down by one fallen satellite, even though only 5% of our communications are run by satellites anyway?
What has Russia got to gain from invading the US? Fast food and crappy TV?
Why do they invade England, France and Germany? For the Lulz?
This doesn't make any sense.
YOU DON'T MAKE ANY SENSE MODERN WARFARE.