Upgradable faactory.

quote: What about possibility to upgrade factory?

Already exists.

quote: Upgrade so factory get light weapon (for raider defence)

quote: upgrade its buildpower

quote: and add some options like cloaker field or just radar jamming.

quote: How sound this idea? I would be nightmaer or new interesting game option?

Great idea!

quote: These buildings have less hp then factory.

Actually that's a feature. If you want more HP you can swap them out for another version:
->
There's also silly things like terraform to "change HP".

Merging LLT and factory (or mex) would make it impossible for raiders and repairs to prioritize one target over the other and reduce the number of meaningful decisions.

That said, have you already seen the "Neon: Minor Abilities for Factories" forum thread? I think it could be very interesting to you.

This is probably a really silly idea, but how about upgrade to make a factory mobile?

Jammer does not cloak buildings, only units.

Units and Sneaky Peet!

What about not merging, but making a destructible module instead? It will still be targetable, but will have an advantage of being already elevated without spending on terra or occupying a constructor which is very important at the start of a game or when your fac gets attacked with no con around.

Actually factories having some uniqueness according to their nacure would be nice.

I mean, hover fac can be placed anywhere, both sea and land, just like hovers act. The same with amphib fac. Spiders fac could possibly be placed without restrictions to terrain, HV fac could be more tank (either more HP, or a little turret included, cuz its pain in the ass to defend it with single LLT, as its bigger than the rest of facs). Planes fac could float in the air, and so on.