Definitely take a look at the status bar / earplugs / other cool things in He-Man's github at: https://github.com/Ignatz-HeMan
For missions you have a few choices.
for traditional styles of missions SEM by Kiloswiss is nice (and grahame or He-Man may have an updated one), and I have been developing blckeagls for some time.
Vampire has made a very nice town invasion / base attack system that was updated a while ago.
Finally, if you like roaming AI, A3EAI has been working well for me.
I can send you a dropbox link if you like.