Hello,
I'm sorry that i will not be able to help with the rule Sets you mentioned.
But if your looking for a 6mm rule set with easy Unit creation I would recommend Maker-War
It's an creative common table top and in the (free) WebApp/WebSite you can create Units comfortable with an Editor.
The game is structured in formations of mixed unit types and alternating activations, using simpler, but faster rules for shooting and close combat.
You can have a look at
www.maker-war.comNo strings attached.
Cheers Athistaur