Since several people have asked online what a countdown node is after seeing it in some of the maps on the server, here is a quick introduction.
A countdown node is a specific type of node which originally appeared in Unreal Tournament III:
http://liandri.beyondunreal.com/Warfare#Countdown_Nodes
Now thanks to Wormbo's coding skills, it is possible to use a similar feature in UT2004:
http://wiki.beyondunreal.com/User:Wormb ... htSpecials
A countdown node, once it is built will start a countdown. If the countdown reaches 0 successfully (ie the enemy cannot destroy the node before it reaches 0), it will then trigger a specific event.
Right now, the countdown nodes featured on CEONSS works this way:
Countdown is 30 seconds. Once the countdown is finished, it will reduce the energy of the enemy power core by 10.