to arrive at my home... for those of you not familiar with the king of tactical scenarios:
http://www.matrixgames.com/games/game.asp?gid=335
I love this game - and think it's great that they have revived and updated the series (it wouldn't play on Windows XP) - with Cross of Iron. Platoon to company size operations of German vs. Russian. Play from either side - the AIs have been improved, and they have done a great deal of work on making the tables of availability and vehicle strengths/weaknesses extremely accurate.
Not a first person shooter, but if you like slogging to Moscow and back with the troops and equipment of the day, I think you'll like it a ton.
Let me know what you think if you try it -