My one and only problem with SupCom is that it slows down to a crawl when you have many AI-controlled players on a large map. This is still true today - I tried playing SupCom on a high-end laptop from 2017, and maps larger than 10x10 with multiple AI opponents are still unplayable. There are AI mods which supposedly improve this, but in my testing, the difference was minor to non-existent. Which is a damn shame, because even the hardest, cheating AI is very easy to defeat if you're somewhat experienced, so I mostly resorted to playing against 3+ allied AIs, which is simply impossible on larger maps.

That being said, SupCom is easily the best RTS I ever played - it was basically Total Annihilation, only bigger, better and prettier. And TA was already an exceptional RTS, one that people still played and enjoyed as long as a decade after release.

I think TA and SupCom ruined the whole RTS genre for me. I was trying to play some newer RTSes, but they are all lacking in features which the two taught me to rely on and enjoy. Strategic zoom, queues of commands in factories and building units, waypoints, unit formations, ferry routes, terrain obstructing visibility, radars, and getting in the way of bullets/missiles, an economy where you have to balance income and spending, gradual construction of structures and units, massive amounts of units on the map and massive units themselves (experimentals), very well-balanced factions with each still being quite distinct and so on - there are games with some of these features, but I couldn't find a game which would have all or even most of them. SupCom2 was a disaster and I refuse to consider it SupCom at all, so I'm basically still waiting for the sequel.

Or maybe I just missed a game like that - suggestions on the titles to try would be very welcome!