Ok, here is my input, take it or leave it. I'm sick of people crying about campers. If you're a sniper it's you're job to camp. You find a safe spot, plant a claymore to cover your rear and camp like you're Davey Crockett. If you have a partner with say an FAL or M14 with an ACOG to act as a spotter and to cover you. I'm sick of the whole run and gun tactics that everyone uses, you move as a team or squad slow and steady and only run from cover to cover, preferably with someone on your team providing cover fire, it's called bound and overwatch. Always stack up to clear buildings and designatesome one to hold onto the spy plane or SR71 for when someone can call in air support. I'm sick of the amount of unrealistic tactics that everyone uses. I'd join a clan but I'm not dealing with that headache. This is why I like Battlefield better, if you decide to camp in a bldg someone can just bring the building down on your head. Don't want to use teamwork and work with your squad, guess what, you'll get raped. COD is good and all and I've recently started playing it again, but I refuse to go into the MP rooms, I can get hours of enjoyment in the Combat Training because frankly I don't have to deal with cheaters or hackers and the AI is just as hard as a room full of prestiges on expert mode.
I played a 3 hour round of FFA last weekend bc I had the time set to Unlimited and the score set to 30000. It was freaking awesome.