The RA3 clanarena from Firestarter's ra3map1, rebuilt for OSP clanarena and bot game play. If you have never played Clanarena this is a good introduction. Load 5 or 7 bots and enjoy. If you are familiar with the original, you may enjoy improving your aim against bots or trying out different paths and tricks. The level can also be used on LAN's where people may be hesitant to install RA3.
Take it or leave it.