If you let the game "idle in game" for a few minutes, the 4 main soldiers will have funny banter between each other.
Game is rated as PEGI-16 in it's original US/EN version, however in Poland it's rated as PEGI-18, since Polish dubbed version contains more mature language.
During the campaign, Sweetwater makes a reference to Butch Cassidy (1969), Haggard makes a reference to O Predador (1987), O Ataque dos Vermes Malditos (1990), as well as Força Aérea Um (1997), and Redford makes a reference to A Proposta (1998).