Tech Level, Help would be appreciated Options

[Dan-z0rZ]

Howdy, I'm new to TD mapping and all, it's a good hobby
But I'm stuck with something, How can I set the tech/build level on my TD missions?
Get this, I've tried setting the "Build Level" tag under "Carry Money" but to no avail

Hi-five to anyone who can solve it or point me in the right direction

[Dan-z0rZ]

I've tried setting buildlevel, I even looked at one of Westwood's maps and found that buildlevel was set to 15
I tried that with my map but again - Power plant, Barracks, Minigunner

Has anyone ever mentioned this before? Or were they content to flood the enemy base with minigunners?

If you could show me how to edit the build section or whatevz that'd be sweet