The mission with the gas attack (Battlefield 1)
was before the game release trailer where the dude in the gas attack wears a mask,I went through the entire campaign but even the hint did not seen on such a mission,what was it in the trailer? where to look for it3 Comments
A
Ahmed_the_Shaitan_Killer
14.06.20
Throw the first here this trailer, so we have an idea of what exactly it is.
If I remember the trailer you're talking about, then Yes, it is multiplayer, as noted Kirill22092.