I wanted so much to hate CoD: World at War, but I couldn't. It was much more balanced than either MW installment, genuinely fun and much slower paced, which for me was a plus. That said, I only ever play MW2 when I get bored of TF2 while hanging out at my friend's house. MW2's creators probably laughed when they were asked if they were going to balance the game properly, 90% of the online community is dickheads and noob-tubers, and when is hilariously overly-complicated for someone like me who enjoys TF2. Yes, TF2 is complicated, but when compared with the gajillion possible combinations of equipment available in the CoD series's multiplayer, it looks simple. Plus, no leveling up in TF2. You start out with guns, you occasionally are given different guns, and once you have them all, you're done. You figure out what you like to use, then use it. Personally, I prefer FJ/Wrangler/Gunslinger engineer.