Yes I actually did read the manual but as with all manuals there are things that are only learned by actually playing the game. Here is a long list from the PR forums and other sources... please speak up if you know something here to be false or perhaps have a better explanation. I've bolded the ones that either I didn't know myself or think are important to know. If you shoot the enemy to the upper body, it is protected with kevlar and it takes it takes 3 shots to kill. Hitting the head is