jbl3ck i think you got some right but the case be not about zone troopers or using a units but about a upgrades.... if you are a NOD player that you deffinitly know that farming for NOD with Cobras +shields and sallamanders+drainHP give you a HIUGE advantage with RT... GDI not have that option and i know GDI got a diffrent units that farming looks diffrent but upgrades for NOD fraction deffinitly are to strong.....
you not have an option like cobra + sallamander in state of GDI fraction... ofcourse you can still find easy farm post for GDI as well but in case of long farming NOD going faster and can farm more efficiently...
maybe its a chance to get look by someone to think about that.....
in my opinion shield should be on evry units not only a ground.... its maybe will be able then farmi simillar to NOD when you will use ORCA+Kodiac that will be a fair i think