Sarcasticgamer.com has put out another free guide for Modern Warfare 2 that includes several useful tips and tricks for the newbies to Modern Warfare 2's Multiplayer. Great read.
From the guide: "Good news noobs, Modern Warfare 2, is a tad more accessible for the new CoD player. Bad news? You still got to man up, strap on a pair and shoot straight. Until you learn to shoot straight, I've gathered tips from some great Modern Warfare 2 players and I'll share them with you.
After the jump, of course! Your Newbie Guide to Modern Warfare 2's Multiplayer awaits."