Here's some answers to Jim & Jay
COD4 Perks
Stopping Power: Increases weapon damage to
140%, however no increase in wall penetration. This is a great perk to use together with accurate guns that don't do much damage.
For guns with low damage such as the M4 this is a great perk, eliminates juggernaut and to everyone who?s not using juggernaut it just does 40% more bullet damage. Does not increase surface penetration, by definition, but think about this. Let?s say a bullet does 40 damage normally, and after surface penetration does 30. With stopping power, it might do 60 damage normally, but after surface penetration it does 45 or so. So not by definition, but indirectly it increases surface penetration.
Stopping Power is available by default.
Juggernaut: Increases your health, taking
75% of the damage from bullets and explosives that is to be originally dealt. If a soldier with Juggernaut is fired upon from a player using Stopping Power, the game calculates it as a perkless fight. Also if a person with Sonic Boom throws a grenade next to someone with Juggernaut, the person with Juggernaut will take regular explosive damage, instead of the increased explosive damage from the Sonic Boom user. This perk is great to use when you like to lay down some cover fire for your teammates. You can keep firing and take a few shots while your teammates get to where they need to go.
How to tell if someone has Juggernaut - When you fire at someone and you see a red cross, it means they are using the juggernaut perk.
Juggernaut is available by default.
Deep Impact: Normally, a machine gun has the power shoot through wooden floors, plaster walls, and even some fairly thick stone walls, but a weapon like an M4 does not. Or not as much. Use this perk to be able to shoot through walls with any weapon. Using this perk I advise shooting at walls and seeing if you get a white crosshair pop up indicating you hit someone, if it does, keep firing at the wall and you will kill the enemy without ever even seeing them. Note: Deep Impact does not add to bullet damage, it only lessens the damage penalty of a bullet that goes through a wall or other barrier.
Another great perk, I love this one for camp sniping. If there?s people hiding from you behind walls, then they?re screwed, there?s no place to hide. Great for any class really, you don?t have to worry about turning that corner and being at the mercy of the people camping around it. Especially great for LMG?s, spray a wall and watch the kill count go up, up, up.
This perk is available by default.