Is it possible turn off the compass in Call of Duty: World at War?

I'm surprised that you cannot remove the compass on this game. In 1941 no one had a device that told them where the enemies are and where targets are. I've had to stick some paper on my TV to cover up the radar for the added realism.

In similar games - such as Medal of Honor - it is possible to disable HUD elements. Can I do the same in Call of Duty: World at War too?

As answered in the comments @Tim is playing on PS3. Unfortunately, there are no settings in-game to remove the HUD. Certain multiplayer game modes such as the Hardcore Playlist will disable the HUD but these features are not available in the campaign. I'm sorry, but without modding the console (and risking game bans from Treyarch) the HUD will have to remain.

As an aside, @Tim has expressed that they enjoy hardcore/immersive shooter games. I'd recommend the Operation Flashpoint series. It's a modern military shooter for the PS3 with realistic squad tactics and damage models. It might interest you.