I've been playing Rainbow Six 3 Raven Shield for the past two weeks. I hadn't played this game since like 2004 (played the original back in like 1999 along with Rogue Spear... yeah yeah I'm semi-old), and it made me realize why I loved these tactical shooters (and SAS) since I was so young! I think the last tactical shooter I played before this was SWAT 4, which was also pretty damn good.
I'm planning on getting Takedown Red Sabre sometime in the near future, so anyone who plans on getting it and wants to play with me, send me a PM!