I recently discovered that the first battlefield, ´Battlefield 1942`, is free to play - Download free from Origin (EA's platform, works like Steam)
Download link: --> http://www.battlefield.com/battlefield-1942
The reason its free to play now, is because it was released in 2002, 10 years ago - 10 year anniversary.
I installed it right away, doesnt need much space and takes like 5-10 min to download and install full game.
I think its fun to play again and I was surprised that thousands of people is still playing it - (Lot of new activity since its free to play)
So if you like world war II theme in general, (Like 1942 RP) this is a game you should pick up!
Hope some of you reading this found this usefull and will try it out!