User blog comment:George Romero 115/Strategy Guide to imrpobving your K/D spread./@comment-3319724-20110503032602

"Patience is a virtue: Wait for enemies, don't jump into the firefight. This is Call of Duty, not reality"

You don't really jump into firefights in "reality", waiting for the enemy is also known as "camping".

"Pick your Perks: Some Perks aren't useful for a variety of things, like how Scout is only good for snipers or Tactical Mask only works with Nova Gas."

Tactical mask also works with Flashbangs and I believe Willy Pete as well.

But other than that, good guide.