It takes place in Chechnya, following an infantry unit. During a patrol they're involved in an incident where a bunch of civillians are killed, and as punishment, the unit is sent out into the middle of nowhere to the Blokpost, a little guard shack on some highway.
Some good fighting, LOTS of gear and uniforms, good soldier humor, and a really, really messed up ending!
Another one to check out is the TV series Spetsnaz. It's a little over the top, but awesome fighting, every piece of gear and uniform you can imagine, and it's NBC TV quality.