It does not fit into everyone's style.
Anyway, this game tells a story of power struggle between two omnipotent factions (Core and Arm) sometime in the future. Transhumanism and galatic domination are the keys in this game, and therefore all of the faction's creations are warlike machines. This is a strategy game, and building your units are an essential step. Fundamentally, you have a Commander in each level/map. The Commander is a unit that is the root of all building, and has the ability to cloak and use a destructive weapon. When the Commander dies, it nukes the area and you are likely to fail the mission.
In the single player portion, you select a side to fight for. Then you are given a solemn-ish briefing, and a diffculty selector. In multiplayer/skirmish, you select a map, your side, your allies/enemies, and unit's respective viewing ability. When you first begin the game, you sees something quite innovative on the screen- 3d units on prerendered terrain that animates smoothly that also has weapon physics, the ability to box-select anything, including buildings; cool naval battles; units with default turned-off health bar; unit abilites such as patroling and guarding; and (drumroll) unlimited resource (the game has two resources that build stuff: energy and metal. They are gathered by resource gathering structures). Another thing that you'll notice that's ahead of its time/avant garde, I'd say, is the huge amount of units (this is mostly prevalent in the Supreme Commander vids...). This factor makes battles intense, and therefore conflicts preferred big guns than strategy, and that's one of the problem I faced... An example of this is when I played the second Core level. I was just a novice back then, and thought like other strategy games, this game requires you to wait for the enemy to come, waste their units on your offence, and then you counterattack to win, and possibily repeat to win. However, I was wrong... I used my Commander as my only weapon because it's the most powerful unit I have. Then, I saw, for the first time in a strategy game, over 20 units rolling in (It was fun at first, but then it got kind of scary). So I used my Commander on them, and ended up having 4000+(ROTFLCOPTOR BUT TRUE) kills for it after several waves of enemy. After a while, I thought to myself, I needed to win this battle and stop the suicidal enemies. So then I built my own army mass and erased them. Later in some levels, I simply cannot handle the exuberant amount of enemy charging at me, especially vehicles that fire long range death rockets and ships that drops deadly plasma cannon from afar, even if I did try hard (VERY HARD) to build my own force. It is then I realized that this game is actually about large forces and powerful weapons rather than thinking strategies, and the unlimited amount of resource means that enemy will build non-stop until their resource gatherers perish. (I forgot to mention The AI is programmed to built lots of units). As of this, the game gets very repetitive as you play on, and although different terrain and obstacles can bring some tactic skills, you are still required to amass a huge army (which also require you to get tons of resource gatherers) or else, die trying. In conclusion, the waves and waves of enemy and the demand for big guns are still hated by me today.
Hmm, I seems to be only focusing on the brute force aspect. Let me tell you of other things that this game offers. The game does have its moments, or else it wouldn't be overrated. First of all, the terrains and objects behave realistically. A hill blocks fire and can be skipped over by artillery units. Rockets bounce on water, and trees burn down like huge forest fires. The terrain aspect especially performs like a star, as it can be a obstacle, a vantage point, and a visual thrill (the prerendered image looks gorgeous). Second of all, the music and sounds are VERY GOOD. The game features psuedo-Doppler effect of weapons sounds, which sounds cool. But what really shines is its orchestra and quasi-orchestra effects. It sets the mood really well, (sometimes even profound), and sounds as though you are sitting in a opera house. Third of all, this game does feature other fun parts. For example, a player is likely to build a radar ASAP. Then he builds his long range hitters that can shoot out of their viewing range. Then he builds some protection like heavier tanks and turrets. Then he does whatever he wants to finish his opponent. And when he gets angry, he builds high-tech weapon like a nuke to annihilate the blasphemy that is his enemy. And as a final note, I actually had a fun time chasing down the remaining enemies. And sometimes intensity and speed (I turned my game speed to maximum just for my own excitement) and big explosions galore from dying enemy are good things.
In the end, this game is sometimes fun, but for me it's repetitive after a while. The graphics are neat, and runs at a smooth frame rate, but a with closer look today, I sees somewhat hand-me-down unit models. I didn't try online modes and its huge dossier of mods, which I did't intend on doing that much. This is just my own opinion, and not a universally accepted fact. I believe that there are a lot of human out there that praise this classic; I am not one of them.