On the subject of old Rainbow Six games... I bought Rainbow Six 3 Raven Shield and its expansion Athena sword... And I SUCK at it. I mean sure it took me forever to get down laying out waypoints and everything but even when I did it's like the AI for my squadmates were dumb as rocks, I've had it for a year now and still stuck on the 3rd level mountain watch. I would place a team to cover a door by having them go Bravo snipe and pointed toward the door, and terrorists still manage to just open the door and gun em all down! I could use some tips for this game because other than the incompetence of the AI teammates and unbalanced snipe-your-face-with-a-pistol enemy AI I love Raven shield and how it's laid out.

I do not remember any walkthroughs at Aggression (R6 fansite), but here at the Gamespot Raven Shield page has some links to hints and walkthroughs for some help.