Ban the following (suggestions)
Noobtube (RPG, any type of grenade launcher except the lock on only *Stinger*)
The "support" killstreak Stealth Bomber
In chat - every 2 minutes to be mentioned the most important 3 rules (in caps) and to type after them to type the !rules command
Maybe change the map and the gamemodes of the Epic Mix and the gungame servers, because they are fully empty most of the time. Maybe changing one of them to Domination and some popular map or on the DLC maps.