http://www.youtube.com/watch?v=ZVcW0BmCQSs
For starts I brought the projectile it fires into csqc, this allowed me to do a distance based sound. If you are far away you would hear a muffled, more realistic distant explosion which would sound much like an ambient noise.
I made use of DP's effect info to include dirt effects when it drives (kicks up dirt behind it). It also now has a blast of smoke at the turret when you fire. The last thing I did effect wise was make a flame thrower

I got most of the gametype done (simple round based mode) and its almost ready to be play-tested a little. Its getting quite fun now
