Battlefield 1 glitches

Greetings

I have been playing Battlefield 1 Campaign on PC and have struck a glitch in Through Mud and Blood - Breakdown.

Q for binoculars no longer works. Nor does M for Map, N zoom mini-map or V Fire mode.

I have not opened a weapons crate in Breakdown.

I have checked the game files and have turned off the in-game overlay as suggested by some.

I managed to finish Through Mud and Blood and went on to Friends in High Places but once I got to the enemy fighters in the first part I would be flying okay and turning when the action flicks to straight ahead. If I continue on flying as normal the game keeps flicking straight ahead so I end up getting shot from behind because I cannot turn.

I could not finish because of this.

I have never had a game with so many glitches.

I am running Windows 7, a Nvidea GeForce GTX 780 and 16 GB Ram.

Any suggestions from players who have had similar problems would be appreciated.