Is there any trigger that can research something (vehicle weaps, infantry armor etc. etc.)?
ADDITION:
Could I get an answer please? Just yes or no. My whole map making project stopped because of that.
Hmm, hold on...
No I don't think so, but you could always do the alternative way, placing the building and letting the person upgrading..?
If you meant you need it researched at the start of the game, just to go scenario >> special abilitys and do the properties of what you want.
Too bad. It was good idea. I wanted to make a game where when you kill you get experience and when you get about 500 Xp you would get another level. Letting player to research is good idea but it would spoil the fun of leveling up a little.
If you were willing to require your players to downgrade your Starcraft to an earlier version, you could do this with EUD triggers.