Battlefield wins just by theme:
There are DOZENS WW2 shoter games.
There are DOZENS sci-fi shoter games.
List me WW1 games... oh well.
This may be not only killer, but really mindblowing and a breaking point in shoter games.
Maybe after this AAA production, we see more games to explore WW1 theme, coz mostly of ones we have are either really old, or just not really top-end.