In 1.5, I liked the M249 and the UMP. Think I'm crazy? Well, back before I started playing 1.6b, these were the only two weapons I used for a while. In 1.5, the UMP was the SMG with the most accuracy, the most strength, and the most armor-piercing capabilities. Despite its small ammo clip, I'd often dominate servers with it. And the M249 was my lucky weapon. I'd go into a room on a suicide mission and I'd come out after killing four terrorists in a blind spray. After a couple weeks, I was #1 on a server with over 1000+ different visitors with over 300 M249 kills and 250 UMP kills.
Since then, though, dying just seems so random. You can't go out rambo-style like you used to. Now, I just buy an AK, Aug, or a Scout and use "strategy."