This Metamod: Source plugin changes the cone of fire in Day of Defeat: Source so it's weighted more toward the center. This makes all guns slightly more accurate and less random.
This is a port and update of the same code used in the Sentinel mod from CAL. However, it just provides the cone of fire feature, nothing more. It also doesn't crash as much.
Note: Unloading the plugin may not work quite properly on certain Linux platforms. I'm still looking into this, but loading it should work fine.