Is this really necessary? Why not limit it to 2 per team? Just because Ts don’t know how to play the map doesn’t mean you need to rebalance the map for them. It means they need to quit being retarded and play smarter.
All Ts need is 1 GOOD AWPer and a jump/decoy and you can take out 3-5 CT AWPers. I know, I’ve done it. It’s not that hard.