I love playing this game, Did you have the settings on hard? I started out that way, and it took me longer to complete the game. Of course I dragged things out by using the PS-1 sniper rifle, trying to complete missions without being detected.
I love playing this game online, and I even play the demo online. I usually use the G-11 if I want to play rambo, because of the high rate of fire, and low recoil, and it has a scope +45rd clips.
I usually use the 50 cal sniper rifle. These are best to use during team play like capture the flag or team deathmatch. I get out past 500 yards, (make sure you adjust the scope for range, and learn to lead your targets). Everytime I get a kill or take a shot, I crawl back behind cover and move to a different position. In deathmatch mode this will help you win, because the less you get killed the higher the score.
I play on alot of the servers, I can't really recomend a good one. Its nice to play on ones that the host is playing just incase someone is cheating he can be booted.
The demo version is fun too, because the same people play night after night and you get to learn how they do things and take advantage of it.
I play on Spookys server alot, usually around 10pm eastern it really gets hopping. Great team play and everyone works together.
WARPIG2