It seems like everything is happening this week. Fortunately, that applies to Customs Night too. If you like playing standard and custom gametypes on custom maps ranging from regular to outrageous, Customs Night (by Community Customs) should be right up your alley. As usual it will be on Friday at 9:00 PM EST and this week it will be in Halo 4. To show you want to join, you just have to reply to this with your gamertag.
You don't really need to worry about rules as long as you're decent and civil... and if don't mind not bringing modded maps or gametypes (on the chance someone gets banned, we don't want to be responsible at all). I hope to see a bunch of people there and have fun.

(picture: the game starts, I fire the incineration cannon I spawned with, I get me a killtrocity, everyone falls apart, someone suggests this for the sign-up)