Propaganda and Toxic buggy question

[qwert-chan]

Good morning everyone.
I have a few questions about Generals modding. The first one is:
1)Do Propaganda Towers affect nearby infantry in bunkers? If no - then how can I make it work?
2)How can i change Propaganda Towers' increase of firerate
3)How can i create a toxic missile buggy with all combinations of three possible upgrades: AnthraxGamma, BuggyAmmo, and AProckets? I've been working on it for a long time, and nothing seemed to work =(
Thanks a lot in advance! ^^

[qwert-chan]

Sorry for a doublepost, but I have another question while I'm at it.
I made a building with a permanent toxic AnthraxBeta aura with:

  Behavior = FireWeaponUpdate ModuleTag_031
   Weapon = GreaterPoisonFieldWeaponUpgraded
  End

Is it possible to change that aura's damage and visual effect when I upgrade to AnthraxGamma?