Through out the 2000's which was also my 20s I think this was COD at its purest. I seemed to be playing a game with The Wehrmacht/Luftwaffe/U-Bootwaffe or an Enemy resembling them in one way or an other. So its no wonder i have a very strong interest in ww2 and how people lived during that period in history 1913to 1950s A few that come to mind are Wolfenstein ,Medal of Honor,Sniper Call to Victory, Battlefield,ÜberSoldier, Alot of these are FPS but if you can think of a genre a game somewhere had covered.