Heh heh heh, I liked the game last night! More buildings would be awesome, or for that matter, bigger buildings that allow both teams to enter and possibly do some interior fighting...
As for the smoke, it was great, I like the fact that even though there was more space where you had a clear path all the way accross the arena, you couldn't actually see if there was anyone there. Making the idea of suppressive fire a bit more.... Challenging? as to where to place it for efficiency.