Medal of Honor Heroes 2 review at IGN.

"When it comes to PSP first-person shooters, Medal of Honor is owning the platform. The last wave of FPS competition put Heroes above its rival Call of Duty by nearly two points on our scale, with other titles on the system falling even farther behind. If you're looking for pocket-sized WWII shooters, Heroes is the place to go for it, and it's true once again with Medal of Honor Heroes 2. As part of the elite OSS you're again dropped behind enemy lines, with seven single player campaign missions that set the stage for another dose of 32 player online action. Medal of Honor Heroes held the title this long, and it isn't giving it up without a fight."

Full Source: IGN