So RocketMod is dead! It is no longer being maintained, and has been abandoned. I have created this page personally to help the community find useful links, as they are spread across GitHub and Reddit. So here we go!
Rocket Subreddit » Rocket on GitHub »RocketMod Subreddit: https://www.reddit.com/r/rocketmod/
RocketMod GitHub: https://github.com/RocketMod
Read the creator's farewell: https://github.com/RocketMod/Rocket/blob/master/Farewell.md
Sven's info about the subreddit: https://www.reddit.com/r/rocketmod/comments/ek3a62/rocketmod_reddit/
RocketMod.Unturned Releases: https://github.com/RocketMod/Rocket.Unturned/releases
List of plugins that were hosted on the RocketMod Plugin Repository (with GitHub links): https://www.reddit.com/r/rocketmod/comments/ek4i7b/list_of_plugins_from_the_old_repository/
My Reddit post where you can ask for a plugin to be compiled from source: https://www.reddit.com/r/rocketmod/comments/euaztx/do_you_need_a_plugin_compiled_from_source/
IcePlugins (3rd party plugin site): https://iceplugins.xyz/
RocketModPlugins - Plugins that have been abandoned, and cloned by the RocketMod team (Github repo links): https://github.com/RocketModPlugins
RocketMod Documentation (forked by RestoreMonarchy): https://rocketmod.restoremonarchy.com/