I had the exact same problem with developer mode showing npc numbers. Feels like cheating. I put the above code in the config file and saved, like that you don't need to enable developer mode, But then the fov command does not work either if put in config file or through the in game console, for that developer mode seems necessary. And the defaut fov is slightly weird.

Did you find a more satisfying solution?

There must be a command to simply deactive npc numbers, but I have no idea which.

I know this is kind of old, but it's still relevant and it appears there is some confusion with regard to the fov. To clear things up, for the fov value to properly change, cheats must be enabled. Adding "+set developer 1 +set thereisnomonkey 1 +set cheats 1 +set ui_console 1" to the properties of the shortcut will enable them. Then via binding or in-game console you can type "fov 100" (or whatever value you desire) and it will properly work.

Did anyone find out how to deactivate displaying the NPC numbers?
I'd like to play these 3 MoH games in 1080p with a FOV = 90, but these numbers are annoying!

i found that the seta developer "1" line was causing it for me i changed it to 0 and they never came back.

im getting the problem where mouse movements seem to be a little jerky and have no idea how to solve it.

got an I5 2500k, 8gb ram, a AMD 6950 2gb model so no idea whats causing it