Fenixp: I hope it's got singleplayer / standalone server software that I can connect to myself. I'd play it then.
You know what, I'm not sure it'd work as well. Half of the experience is the feeling of dread of being shot. And honestly, getting shot is not that bad. You lose everything but there really isn't all that much depth to the game - but not in a bad way. Rinse and repeat. And it works extremely well.
That being said - me and my brother are thinking about renting a server and setting it up for the two of us.
SimonG: So, you rather play with yourself, I presume ... ;-P
Me too, but I'd rather play with my brother!