Tactics/Strategy help. Answering your questions.

[PhilipJFry]

T1 bombers are great if you need to overrun a base full of T3 anti-air (that is NOT seraphim). T3 AA is deadly against its own tier but because they will overkill hopelessly, their usefulness is about that of a T1 MAA (except a one with 7000 HP). You can definitely spam 50+ T1 bombers, send them to bomb an unshielded firebase/resource base that you need to take out, do split attack and bomb 'em. T1 bomber spam may also be viable to weaken a shielded base but I do not know how efficient that'd be.

No.

Spoiler: show

Whoever feels responsible please lock the thread already.

[doctor brachman]

is it best to go pgen or mass extractor first- after factory

[TheKoopa]

Every bo and map is different so it depends

[GamerDreams2019ns]

Do I need to upgrade a Tech 2 factory ?

Example I have built a Research Center and upgraded the Research level to Tech 2, all Tech 2 "Air units" were unlocked and I can build those Tech 2 Air units. But there is an icon in the build menu - to build Tech 2 Air Factory ??!

Do I need to build that Tech 2 Air Factory since all Tech 2 Air units were already unlocked ??

Thanks.