A few villainous teams have always seemed a bit strange to me with their grunts. Team Plasma, Team Aqua and Magma, and Team Galactic all have this talk about their goals being for the bettering of humanity, but their organization is structured like the obviously-evil Team Rocket. Galactic kinda...
I cover compiling at the top here -
https://eeveeexpo.com/resources/1259/
Compare the pokemon_metrics.txt file in your game with the pokemon_metrics.txt file from the download.
Make sure the plugins are in the plugins folder and that you've compiled them.
I cover compiling at the top here -
https://eeveeexpo.com/resources/1259/
And the wiki covers plugins here -
https://essentialsengine.miraheze.org/wiki/Plugins
The sprites are scaled to 1x instead of the usual 2x, and the pack uses a script to scale them up in-game. Make sure you've compiled the scripts and got the right pokemon_metrics file.