I'm not sure why I didn't enjoy it as much as other games in the genre. Perhaps it was the weapons. Shooting through walls means that you don't have to form a strategy for getting to enemies in tough spots. Seeking weapons means you can take out enemies without even seeing them. I tried to not use these weapons, but there were parts where I just wanted to advance the game (which, to me, indicates that there are boring sections). If it wasn't the weapons, then perhaps it was the level design that didn't keep me interested (though the later levels were awesome). Whatever the reason, the game was just mediocre IMO.
RFoM definitely picks up near the end though. So, if you do buy this game, and you're getting bored, keep in mind that the last couple of levels are worth the chore of making it through the early levels.
I haven't played it online (none of my buddies have a PS3, and I tend to only play online with friends), so I have a feeling I'm missing some of RFoM's awesomeness.
I give it a 8/10
In Hard, you get to use new weapons (1 more new grenade, and 2 new guns not found in default difficulty).
One of the best FPS experiences I've had.
If you have a PS3 this is a game you should have. If you like FPS, this is a game you must play.
Difficulty scales as you progress by the mid point and latter levels the game changes and is exhilirating.
The way the game saves are oganized and the scale of some of the enemies is also great.
Overall, a great game by it's own right. The multiplayer is awesome, for those complaining about map size you can restrict yourself to smaller maps or you can practice by yourself to learn them.
The number of mobs coming at you at once and different kinds of mobs is when things gets interesting. Some games may have better graphics (Gears) but they don't have the number of monsters and variation of species types.
I'd give this game a 9.5 out of 10. Decent story, great gameplay, awesome multiplayer and very good visuals with top notch sound.
Speng.