Some of the single player maps had power shield as well: jail2, jail3, jail5, city1, city2, city3, etc.
Are you sure? I'm 100% sure that I did read online somewhere that the full-body power shield was not actually used in Quake2.
And when I crank up single player and type in "give all", it does not add the power shield to the inventory, only the power screen.
Can't load up single player unless I do it through the old quake2.exe. And then for some reason when I try to change the renderer to anything (it starts as supposedly "software"), it crashes. But weird thing is... it seems to start off using openGL even though it says "software". At the same time, it starts off in windowed mode with 400x300 or whatever. But if I go down to screen size and raise it to 1024x768, and then fullscreen it, the colors go totally fuckered up and psychadelic looking.
The only map that comes to mind is one on mutant. I have no clue what the name of it is, but maybe if I describe it, someone will know which one I'm talking about. I has a bunch of long sidewalk type things suspended in space that you can jump off and die, and theres one or two main buildings. One is on the lower portion and has (I think) exactly 3 teleporters side-by-side in the basement room of it.
BTW, q2dm8 has a power shield, but the tastyspleen FFA servers override it globally to power screen.Some of the single player maps had power shield as well: jail2, jail3, jail5, city1, city2, city3, etc.
I always remembered security complex as the level that had the super special green armor.