The P90 is probably the most fun weapon to kill people with and watch them rage at not being able to kill you with ease. Even hough this gun can be incredibly accurate it doesn't reward accuracy as much as some other of the guns will, but it's still useful and practical holding fifty rounds rather than thirty like other submachine gun. Most of the time when you find this in the singleplayer campeign you will find a bog standard P90 but on rare occasions you can find a P90-SD with a silencer and red dot sight. This is found in the level "all ghillied up" And is great fun to attempt stealth missions with even though the enemy have supersonic hearing.