Oh gotcha.
Yeah, it's kinda frustrating, but I'm just not having fun anymore. I've died a couple dozen times at that part already, and if I want to drop the difficulty down it would mean I'd have to restart the whole level which I don't really want to do.
I'm honestly not very good at these type of games, so you and others who are better at FPS's may have more fun with the game. I'll still try Resistance 3 at some point in the future. I like the weapons and aliens and stuff. R2 definitely is starting to feel dated though, the aiming isn't nearly as precise as it is in new FPS's.