Not the point at all. If you consider MoH and Half-Life to be in the same genre, I can see where the problem is, because other than FPS they are not. Sci-fi games can make up their own vocabulary and reuse military jargon as they see fit. Why should I buy a game who's terminology indicates that the multiplayer component is only a training exercise generally played out with MILES gear or paintballs? I may as well get Police Trainer.
A game designed, advertised, and sold as either an historical or modern reality based combat FPS really shouldn't try to redefine a term already in use by the military depicted. Or did the "F" in FNG for Call of Duty 4's first mission change to "Frakking" between when I first enlisted (and was the fucking new guy) and now?

The use of "opposing force" or OPFOR changes the muliplayer component from squad based combat to squad based combat training. The designation OPFOR is for a unit simulating the enemy for training purposes. The game may not be ruined, but it is drastically altered by the use of the term "opposing force."

Of course it can, sir. It's like a second language to it.

Actually, for years they had Muhammad in the opening of the show. Low res, I know, but he's to the right of Kenny and the sign near the alien.

That's crazy talk. A building covered in chicken wire, stucco, and paint would never fit in with the rest of the houses in Santa Fe.

To paraphrase Homer:
sure, IN theeoory, in theory socialism works ...