Your server has a web console on 2hours.gg that sends rcon commands for you. In game you can do the same: open the console, type \rconpassword followed by the password on your server card, then \rcon followed by the command. In a match, anything typed without the leading backslash is sent as chat.
Maps and modes
status: The current map and everyone connected, with their ping.map q3dm17: Load a map right away.g_gametype 4: Change the gametype for the next map: 0 Free For All, 1 Duel, 3 Team Deathmatch, 4 CTF. On a Team Arena server also 5 One Flag CTF, 6 Overload, 7 Harvester.map_restart: Restart the current map.fraglimit 30,timelimit 15,capturelimit 8: Set the match limits.
Bots
bot_minplayers 6: Keep the server topped up to 6 players with bots, or 6 per team in team modes. Bots leave as people join. 0 turns it off.addbot sarge 3: Add one bot at a skill from 1 to 5.kick allbots: Remove every bot. Set bot_minplayers 0 first, or the server adds them back.
CPMA modes
On a CPMA server, callvote mode switches the ruleset at once: 1v1, CTF, CA (Clan Arena), FTUS (Freeze Tag) or ICTF (InstaGib CTF).
callvote mode FTUS
Joining
Open the console with the key below Esc, left of 1 (~ on a US keyboard), and paste the connect line from your server card. With a password, type password YOURPASSWORD first.
Deploy a Quake III Arena server by the hour