cant u explain what they are, idk what any of them really are 
Look
1-Factions : Its like clan there will be in it few ppl or alot of ppl as the players want to join maybe players want to make their own fac maybe they will join factions.. factions like there will be lands,these lands must be climted by your faction by saying ./f claim btw to make faction just say ./f create [name]
Factions are for PVP thing.. Like if u have faction u will have lands in these lands u will have u r base, you chests. your items your [BASE] This facion all of your faction member will share it with each other in other way you live together factions have a power if this this power can be more if u have alot of memebrs in your faction and it will be noremal if u alone. if your power will go down more then the enemy the enemy can claim your stuff and raid them and u will start every thing over.. if your power more then the enemy you can raid him by going to his land and say ./f claim then you can open and griefing his chest,base.
Also there will be 3 kind of factions if you make faction you can have ally's= Friands faction and normal. and enemy.
Thats it
I typed all of this not from google lol
Town : Ask some1 know lol