Hey I have some thoughts you could possibly add... Also GJ I was waiting for someone to make it for SM. If I knew SourcePawn more I would have done it...
Add Deagle Marker and Distance Announcer/Chat
Add Race and Hot Potato
Auto Team Balance - This would make the teams auto 2
(Ct:T) ratio or 1
(Ct:T) but have a Cvar to set that.
You could also add something where if a CT kills a T that was a rebel they would get x hp or x speed.
But anyways Good Job and More power to you!