http://www.fudgefactor.org/2004/05/05/firefight1.html

I like a lot of the ideas (and many of them are portable to other systems, particularly storyteller):

• You don’t track your bullets. You roll to see if you are out and have to reload. In real gun fights you can’t keep track of bullets (police, army and your next door neighbour can tell you that). So this would simulate the “fuck I’m out!” situation. The same mechanic covers gun jams as well.
• Three simple modes. Ordinary fire, Automatic fire (if the gun supports it) and Supression fire. Simple.
• There’s also rules for holding someone at gun point and for handling mexican standoffs!

I’m pretty sure this wouldn’t be much use for games like SLA or SR that emphasis bullet tracking (and particularly buying). But I’m interested in people’s opinions and comments?