Factions to nightfall

i want to know how do i play my factions character in nightfall
if you know, please help me

thanks

When you reach Kaineng Center with your Factions character, speak to Imperial Guardsman Linro, who will have a quest called "Sunspears in Cantha". Complete that quest and you will unlock travel to Kamadan. It's a pretty difficult quest, but most people are at or near level 20 by the time they get to Kaineng Center anyway. Also, you can make a team of eight and all the henchies are level 20, so it's easier than the quest to get from Prophecies to Nightfall.

Note: You must own a copy of Nightfall and it must be linked to the same account as Factions to be able to do this.