I also like the "Kill for the cycle" gametype on 1fort, along with the L4D variant y favourite!

There seems to be a plethora of maps that help you improve your skills like rocket/scout jumping maps at fps banana.

I'll try some of them and post here if they are worth it.

BBall for rocket airshots and so on as you have to rj to hit the basket and they only way to stop them is air shot them