Okay, so today I will be telling y'all how to raid(this is for like new people to factions).
First you need to make a faction. Do /f create [faction name] get a lot of people in your faction. Start searching and every once in a while do /f map. If you see land claimed, head toward it. Sometimes, you don't even need to use /f map and you just see it on land. While searching, be sure to bring 3 or more boats. A horse would be helpful, too. Once you find the base, if it's on the surface make a tnt cannon to break in. Keep on shooting until you get the chests. You can also go and kill them if you're more powerful. Kill them until their faction power is lower than their land. You can now claim over their land with /f claim. See their faction stats with /f show [faction name] if that doesn't work, do /f f [faction name]. You can ask to join a faction in the chat. If they accept, and they have an f home, do /sethome as soon as you do /f home(once you teleport, of course). Then, some time later.... do /f leave and kill them behind their backs. Get your whole faction there to fight, and join your faction again. As soon as they get lower power than land, claim. Claim on the chests if you can! Don't loot the chest until they give up the war. But, DO NOT attack them if you don't think your faction can take it! Okay...  you can do the betraying faction thing on the surface and underground. If it's underground, see if you can blow through their wall and destroy their chests and base with a tnt cannon. If you don't know how to make a tnt cannon google is your friend xD. They will probably try to get revenge, so watch your back! if their chests are protected from tnt with water. Look up how to make a sand cannon. It launches the sand and puts out the water, therefore making it possible to blow it up with tnt. When attacking, bring potions, armor, swords, tnt, flint and steel, lava, water, and bows. It will be better if they're enchanted. :) You can also gain their trust. After you do, ask them to see their base say you'll show them yours. Make a fake base to show them. Then, go to theirs and RAID! Hope this helped the new people! :D I'll make a tutorial on how to make a good base next time! ;)