If you call in an air-strike to destroy your own PMC then get into the Racing Inferno, Fiona, who is now dead and buried under 100 tons of rubble, will admonish you for stealing her car.
In an early cutscene, the date "Fri. August 30, 2010" is shown on a TV newscast. August 30, 2010 was a Monday.
If you play as Jacob he will say something about the AK-47 being his favorite weapon, but what you are actually picking up is an AK-74 or 103.
When you are doing the outpost missions for the pirates, it is possible to see AN troops before they enter this conflict.