You could make one with heavy scripting and dialogues, I suspect, but very much not worth the trouble since you can make it appear by pressing G on the keyboard, which you could probably tape down if you really wanted to.
Coinicentally I've just played Call of Duty - marvellous for light relief - and if you like that sort of thing then, well, I recommend you play Call of Duty. Of course the compass there is entirely pointless, since instead of navigation you simply follow the spectacularly narrow corridor. A little ironic really. The MP maps are absolutely tiny, you don't need to play one for very long (well, more than one game to be fair) before knowing your way around it pretty well.
OFP doesn't have a compass on the screen because when you are shooting at somebody or reloading you cannot be looking at your compass. And anyway you don't need to. Compasses are delicate and valuable: they are kept in secure pockets. You have only two hands don't forget, and most of the time both are needed for your weapon.