After playing Dawn of War 2 along with its expansions, this game feels like a regression in almost every way.

The campaign tries to somewhat strike a balance between the first and second Dawn of War games. You still have hero units, but for most missions you need to build a base and manage your regular units. The main issue is that this core gameplay loop is a chore to play.
Here's an example of 90% of campaign missions in DOW3:

- Capture points to get resources at an extremely slow rate, no matter if you upgraded them or not. There is always a power shortage for advanced units.
- Assemble a huge army to push the objective.
- Watch 99% of regular units die within seconds and hope your advanced ones survive long enough to destroy/capture the objective.
- Repeat.

Almost every mission feels far longer than it should be due to this extremely slow and boring gameplay loop. By far the best missions were the ones that followed DOW2's design, where you only control hero units.
Regarding hero units, it's a shame that gear and leveling up has been removed in this game, since it would've fit well here.

The game does look great and runs smoothly, unfortunately these are not good enough reasons to play it. It's a real shame, since I wanted to like this game, but every time it took a step forward it took 3 back.

I'd recommend playing or replaying the previous games in the series instead, it will be a far better experience.