The Upgrades and such....

I saw a nice bunch of upgrades.
And ofcourse, it is a matter of personal opinion, but i like to have the opinion of those who played this a lot longer already.

If you had a choice between the following upgrades:
Ground secondary defence......
airtransport capacity..........
lift the fog..............
ground special defence
stronger ground special defence.............
faster naval stealth.............
sky menace............
mobile ground special defence...........
and affordable support.

Logically it would make no sense choosing Stronger ground special defence or Mobile ground special defence without having the upgrade: Ground special defence...............

But, what would be your choice?
Or would you save up another 500sp for Blitzkrieg. Or save even more for an even better upgrade?

I know, its a personal taste, or opinion, but im a bit lost as to what makes sense. What gives you the edge, the more power, the possibility to win against more advanced players, etc etc...
Ofcourse its nice to have them all, and itll eventually come.

Anyways, thx for any reply.

PS: you got these upgrades like Faster naval stealth............
But you also got this Blitzkrieg.
Now suppose i got em both, will that make em even faster?
So will the +1 movement of Faster naval stealth be added to the +3 movement of Blitzkrieg?

PSS: Affordable support............... what is counted as support?
Is it only the sentry planes, or the transporters? Doh, i think i need to read the forum more and more............. lots of reading to be done.
Wish they had made the searchbar look for keywords in any order.
I tried several searches on several things, but maybe i use the wrong keywords, or this searchbar aint coded nice.

Usually your cheaper and faster main ground defense are the upgrades you'll wanna try get as fast as possible lift the fog is kinda useless

support is that of sentry planes and any other unit on custom maps that state "support"

Check here for all upgrades: http://atwardatabase.weebly.com/upgrades.html
Check here to prioritize upgrades: http://atwardatabase.weebly.com/survey-1.html (last table)

Muchos graçias señores........