Pro Tip for Season 2 - don’t forget to scroll back through your ranks and collect free chests for earlier ranks - like I did lol.
It looked like I ran into a bunch of opponents that didn't know to scroll back to get all the free chests. It was easy wins at the beginning of this season.
I had a taskforce member tell others to upgrade their gunboat and artillery first. That obviously didn't help since his win percentage is 33%. I started unlocking everything on the path to riflemen. Then before beginning my first attack, I upgraded the landing craft and riflemen to maximum level. In these beginning stages, dropping 208 maxed riflemen overwhelms most opponents.