Ok.
3rd Perk:-Martydom; Gayest perk ever, my kill streaks are often ended by people that use this class cause I kill a bunch of people in a group and one of them has Martydom
-Last Stand; Another gay perk, often really pointless. The person can kill you before you even manage to get your pistol out.
-Iron Lungs;Kinda pointless, if you are good you will be able to hit a guy before you run out of breath
-Steady Aim; One of the better 3rd Perks. Most people just use it when they are spraying. I would use it until you unlock dead silence.
-Eavesdrop; Most people when they are playing on Public matches arent really tactical so this perk is pointless as well. If you do get involved in clan matches still dont use this. Only good if you want to hear the opponent crying when your about to kill him.
-Extreme Conditioning; Good for game modes like Search and Destroy. If you like to run and gun then I would recommend this. It is good to get out of the lag at the start of the round in Search and Destroy as well. Use with a silencer and you got it made.
-Dead Silence; This is byfar the pest perk in the game, whether it be clan matches or public matches. It is a beast perk, it is also really good if you run and gun. You can sneak up on people without them hearing you. I used to never use this perk until I found out that I wasnt the only one using sound in the game.
Recommendation: Use either Dead Silence or Extreme Conditioning2nd Perk:-UAV Jammer; Probably the best thing to use if you are playing Hardcore Search and Destroy or Hardcore Team Deathmatch. If you are not playing either of those then do not use it. You can hardly sneak around people and it doesnt help to use when your fighting head on with someone
-Double Tap; Increases your rate of fire by quite a bit. Really bad. Dont know how to explain it, just dont use it.
-Sonic Boom; Not really a good perk. Never is there ever a need to use it unless you are playing Free for All on shipment on Hardcore settings
-Sleight of Hand; Most pointless perk in my mind unless you have a sever obsession with spraying and praying on the LMG's but chances are you will probably be dead before you get a chance to reload
-Overkill; Another good perk if you are playing in Hardcore because you can have a sniper and SMG or Assault rifle so that you can protect yourself if someone trys to sneak around you. Dont use in regular cause it makes guns really weak with no protection
-Stopping Power; One of the best perks if not the best. Stopping Power can make a sniper one shot kill even if you dont get a headshot. Make most guns kill someone so quick that they wont have a chance to think. Use it as much as possible
-Juggernaut; aka. Juggernoob, Juggerfag. Juggernaut is perfectly fine imo. it makes the playing field more even against Stopping Power, I could really care less if people use it, it is just for people with slower reaction times.
Recommendation: Use either Juggernaut or Stopping Power. If it is hardcore use UAV Jammer.1st Perk:-Frag x3; The gayest first perk ever; most people use this to nade spam because they cant get kills with a gun. On S&D it is especially annoying for someone that rushes cause they throw out nades right where your running up and one of the three is gonna kill you.
-Bandolier; A really good perk for people that can get high kill streaks and stay alive for a long amount of time. Probably not a good idea to use in S&D because you either die or win the game before you run out of ammo.
-Claymores; Another good perk for people that like to camp. I dont personally use it cause I am not the type to just camp in a corner with 2 claymores placed around and wait until someone runs by them. I would recommend it for things like Sniping or S&D to put on the bomb sites or protect your self from people running from behind you.
-C4; Argh..I cant really say anything bad about this perk except it is probably a waste of a perk because you are either gonna die before you can blow it up or yea thats it.
-Bomb Squad; Another good perk if you like to rush those campers. You can see where they have placed there claymores or C4 so rather then walking around a corner to a fricken claymore you can tell its there, blow it up and kill the guy camping
-RPG; Really fun perk imo. I use it when i get bored of killing with a gun. Go run up behind a guy and shoot him in the face with my RPG. Quite entertaining. But really wouldnt recommend using it seriously.
-Special Grenades x3; Best perk in the game, Including all the other perks. You can easily knife someone while using this. You can either stun them or flash them and you are mostly likely gonna be able to sneak up behind him and go for the knife.
Recommendation: Use either Special Grenades x3(Stun) or Bomb Squad on an objective based game type like S&D. If you are playing a game like TD and you can survive for a while use BandolierNow im sure Sphinx or some of the other people will have something to say about this but these are just my opinions. I have played the top 3 teams for COD4 on 360 and these are what I have learned from them. I was invited to the #2 team for the COD4 Ladder but couldnt donate enough of my time to them. So I had to deny there invite. But now im more active then Hairs on the balls of 14 year old.