I thought If one want to give WCS a less "American" face one could also try to introduce some real foreign "battle chatter". I mean in a possible future galactic conflict the training and the putting up of squadrons would be probably done on a national level. Therefore why not put up some battles with other squadrons, say from China, Russia, Poland, Italy, or Brazil, where the English speaking player would feel caught a bit off guard, but still fly having fellow humans around:-)
During the Battle of Britain in 1940, two polish squadrons 303 and 302 have excelled to become Royal Air Force's best squadrons. The pilots were veterans who managed to escape to UK following Hitler's Campain in Poland in1939. They used of course polish to communicate between eachother and English to communicate with the Air Command. I thought, why not pick up such plot? There could be some other Squadron flying off the TCS Warsaw, TCS Frankfurt or TCS Minsk(for example) co-engaging one's own targets?...