So I have General Grievus and Jango Fett.

My opponent has Jango / Bala / Trooper

I activate General G, my opponent activates his Jango, I then activate my Jango. Correct?

Then, think about this: I play Tactical Planning, then activate General G, which he activates his Jango, then I do my Jango, then I get to resolve both of my characters dice, and kill his Jango. Awesome

Jango activates after an opponent activates his character. So Jango can activate after the other Jango activates. Why oh why would your opponent do that though unless they got nothing in their hand to handle your dice.

Yes that's how it would work

One is Jango and one is an unaltered clone.

10 hours ago, Rogue 4 said:

So I have General Grievus and Jango Fett.

My opponent has Jango / Bala / Trooper

I activate General G, my opponent activates his Jango, I then activate my Jango. Correct?

Then, think about this: I play Tactical Planning, then activate General G, which he activates his Jango, then I do my Jango, then I get to resolve both of my characters dice, and kill his Jango. Awesome

Except your characters most likely show a mix of Ranged and Melee damage so you couldn't resolve them in one action short of something like All In, which is why people run Jango/Veers where you are much more likely to do things similar to what you described there.

Your opponent will only do that once.