The RA3 Clan Arena from Firestarter's ra3map1, rebuilt for OSP Clan Arena and bot game play. If you have never played Clan Arena 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.