After all this time of owning the game, and playing plenty of skirmish, never have I actually finished the story campaign. Until today, when I finished the UEF campaign.
God
damn, what a slog. Took the three attempts. First attempt, I died when the scripted nuclear barrage that occurs as the battle enters the second phase completely bypassed the two anti-nukes(which had full ammo) and sniped my ACU and his new girlfriend(and the superweapon I was supposed to be protecting). Said anti-nukes were also about 50ft away.
Second attempt, I barely survive the first Cybran assault, which consists of dozens of shielded assault bots and
four Monkeylords. I was able to take those out mostly because my battleships could hit them at max range. However, when the superweapon is ~40% charged, another wave like that drops. That one, that one just walked over everything. Instead of trying to salvage that fight, I started over.
Third attempt, I intentionally held off completing the first objective until I could build a defensive wall. Although a few section fell to random Cybran air raids, and provided a lot of effective fire at bringing down the Monkeylords. I very nearly stopped the Cybrans from capturing the superweapon's control building, but I think the game bullshits in more engineers to force its capture. Plausible, since the mission doesn't continue until you retake it. Taking advantage of that, I built a new strongpoint, consisting of a T3 shield, several Triads(you don't get T3 land turrets), enough Flayers to prevent the shields from being overwhelmed by suicidal bombers, and a Fatboy. The Fatboy is actually pretty effective in this mission, because although it lacks the direct-damage capability of the Monkeylord, it can spread a lot of damage around.
By sheer luck, this new strongpoint was just outside the next nuclear barrage, which is good because I forgot to build an anti-nuke launcher. When the second Cybran assault arrived, these guns, plus fire from two fleets on my flanks, in between dealing with both the Aeon and Cybran navies, brought that assault to a quick end. The rest of the mission was a cakewalk after that.
Supreme Commander, original.
EDIT: Finished all three campaigns now, doing the Cybran second, and Aeon last. The final mission for the Aeon wasn't that hard. I only had to save-scum once because of how hard the Cybrans roll in during the second phase. I was able to prepare for that by building a heavy defensive line consisting of multiple T2 turrets and artillery guns, backed by a delayed-production(due to unit cap) of dozens of T3 bots and artillery tanks. The gun-wall and the first wave dealt with the Cybran attack and my navy cheesed their base.
The final part I thought I would have a problem with - a massive naval attack on my base. But then I saw the enemy commander on the edge of his base, so I sent those dozens of assault troops and artillery directly at him. Mission, and campaign, done.
Supreme Commander, original. Next up is FA's campaign, I guess.