yeah barnyard has a very detailed guide from what i understand, but sadly their discord is currently private. if you're interested in lending a helping hand you could ask Jaktan, the owner, to make it public again so the entire community can benefit from its files and guides.
to counterbalance the usage of jar jar against imps i've been religiously choosing his character for the sole purpose of spamming nades in small corridors or nearby ledges to instantly wipe out my teammates.
you're welcome!