soooo whats easier for me to use tec or advent
TEC is stronger early-game, Advent is stronger late-game. In singleplayer, you can be successful with either.
TEC, Advent is currently bottom of the barrel with Diplomacy 1.21
This is true in multiplayer, but in singleplayer you shouldn't have any problems with Advent. The AI doesn't build enough LRF-type units to prey on Advent's early-game weaknesses. Just play defensively if you need to and get out your better unit types.
For frigate-based fleets as Advent, focus on the Progenitor Mothership and Halcyon Carrier capital ships, combined with the Iconus Guardian support cruiser. The Iconus Guardian is capable of absorbing incoming damage, protecting friendly units. Use the Progenitor with its shield restore ability to keep your Iconus Guardians healthy. With two Progenitors constantly rotating shield restore and a few guardians on defense duty Advent fleets can be nearly impervious to regular weapons. The Halcyon can push away enemy strike craft while boosting your frigate attack rate.
For a carrier-based fleet, the Rapture Battlecruiser with its concentration aura is an invaluable boost. Use the Iconus Guardian with its repulsion ability to push away enemy units and keep your carriers safe. The Halcyon carrier remains a great choice for swatting away enemy fighters and protecting your bombers, and it's a competitive carrier in its own right if specced with Adept Drone Anima.
Oh uh one thing about the carrier-only strategy: if you're playing against Hard or anything harder, the AI will come at you with huge swarms of light frigates and a few other ships early in the game.
Early-game if you have your heart set on carriers, go with the carrier
capital ships. They're much tougher and faster than regular carriers, and although you get fewer squads this extra longevity will pay off in the long-run. Always back them up with frigates.
Later on, you can pursue mass carrier strategies. Those are quite effective against the AI and I personally believe that if you can reach 100 squads of bombers the AI is utterly incapable of beating you save by sheer luck. It's simply too disorganized to beat such a deadly fleet, and unless all its units are positioned perfectly with the right combos in play (it can happen by chance, but it's rare) it won't stand a chance.
