9-Bit Armies: A Bit Too Far-Overlords-Hard Campaign 05 "Hidden Truth"
Campaign 06 "Off The Book"
https://www.youtube.com/watch?v=tBuohzgzmz4
Campaign 04 "Holes to Elsewhere"
https://www.youtube.com/watch?v=IDhRlG_DUkw
Air Control is important, make sure you train MG heli as more as possible, use your gunboats take out Sentinels shipyard and Mega power plant, also clear enemy on water area.
Then use MG heli to take out Sentinels Mega power plant, make sure to destroy suicide drone when you're attacking Mega power plant, suicide drone can destroy whole MG helis very easy.
Attack Mega power plant, if you see suicide drone, hold Ctrl and right click, this will force units attack other target in their range, if Sentinels units coming, pull MG heli back and attack, hit and run to weaker Sentinels units.
Let 2 infantry get into transporters, you can get create on water with transporter, 2 Battle ships will be help.
I'll suggest focus on Sentinels Mega power plant and Drone center, after take out all Mega power plant, focus on data, let MG heli focus on portal, then send infantry to get data and other create, use transporters to land infantry on beach, to collect data and rest create.
If nothing goes wrong, should be able finished less than 25 mins, but I'm not good at large map to control everything well.