These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
One of the Wolverines, Daryl, makes a Call of Duty: Modern Warfare reference. Before the 2012 remake came out, there was a mission in Modern Warfare 2 that had a Red Dawn 1984 reference. The mission was called Wolverines! and the achievement for that mission was Red Dawn.
Also, apparently in this continuity Russian ultranationalists took over control of the country. This is exactly how Modern Warfare series begin.