I played this one a lot when I was a kid. I've never been good at RTS games. I've only got past a few missions in AoE1 and 2, Warcraft 3, and maybe sometimes Age of Mythology. This one is different though. You don't have to produce any units, in fact you don't get to.
You have two single-player campaigns, and for each mission, you get a briefing with some text and a map or maybe two, sometimes a cutscene I think, and then you are confronted with your typical top-down view of your units and the battlefield. What makes this game different is that you only get to move the units you start the mission with, and maybe you get a few commands for them to move or attack in a certain way, but what you see is what you get.
This doesn't hold true for the enemy AI though. They will spawn enemies out of the blue, including pieces of artillery on the other side of the map. This gameplay loop rewards memory when strategising. It feels more like a puzzle rather than a micro(management) challenge. Maybe that's why I was able to beat quite a few missions as a kid.
Either way, RTS went on a whole different direction, and I'd love to have this game to go back to, at the very least for the pretty graphics that felt so immersive back then, in my Windows 95 days.