Fans of tactical, squad based counter-terrorism shooters should definitely look into this amazing game.

User Rating: 8.6 | Tom Clancy's Rainbow Six 3: Black Arrow XBOX
Pros -

Large selection of weapons, pretty good graphics, amazing realistic tactical gameplay, xbox live adds tons of replay value, enemies respond in realistic ways (sometimes they may run off, other times they might throw a molotov at you, sometimes they hide and spray bullets in your direction with one hand), friendly AI is good most of the time, blowing a door open with a breaching charge and storming in is great fun.

Cons -

Sometimes squad gets stuck behind objects, most guns are underused, if you don't have xbox live then this has limited replay value (but still quite a bit with the custom missions options),stereotyped names and voices.

Get it? -

If you can't get enough of tactical shooters, this is definitely worth a rent at least, and if you love working as a team, you will love this game. Picture the scene : You need to infiltrate a small room with a hostage inside, so you order your team to flash on a zulu go command, you go around the side, press the go button, and charge in, rescuing the hostage while your men take out the terrorists. Like the sound of that? Then buy this game off ebay for a bargain price tag! You can't go wrong with that!