1. Graphics. The graphics are amazing. '-'
2. Guns. Alot of guns if you use them right are over powered.'-'
3. Scorestreaks. Scorestreaks are easy to get when you are facing the right people and they are over powered. '-'
4. This one is a good one and a bad one. People. When people are having a bad game you can do REALLY good, but when people are having a good game you do REALLY bad. '-'
5. Customs Games. Custom games are really fun because you can just joke around do really good in it and pretend that you can do that good in online games . '-'
Graphics are the visual if its blurry or if its clear. Guns are..... well you probably already know what guns are. Scorestreaks are when you get kills or complete the objective in game modes and when you get enough score without dying you get a scorestreak. People are the people you fight online. Custom games are a private match that you play against bots which are computers.