Yes, at least partially. Caroline was shot through the spine by Hans Grosse in that game, Deathhead's face with horribly scarred by the Zeppelin crash that happened in that game, the Kreisau Circle came from that game. It perfectly matches up there's honestly no way to disregard it from the Canon. The only difference is BJ's appearance but even then they make a point to reference in the game that he probably dyed his hair as the Nazis remember him being blonde.
