Merc meets ghouls in Africa, How to play ghouls as NPC Options

[Mist-e-Fire]

Hello

Brief Background:
We are playing a long merc campaign in Africa. At some points, my players met and got to fight ghouls. I played them terribly like regular humans. At the end of that mission, we discussed together (player and GM): we said that if we meet again ghouls, players would have to feel what ghouls really are, their powers, their nations behind them etc. Here we are, some time later, and they might meet ghouls again... And I still have no clue on how to play them! Please help me!

So the question: How would you play ghouls coming from Assamondo in Africa neighbourhood? What points should I pay attention when playing them?

1) Weakness to sun? Should this prevent them to act during daylight? Or covered?
2) Equipment? Assamondo is supposed to be rich and well equipped. How would you equip merc ghouls?
3) Out of borders ghouls: Should ghouls be often out of Assamondo? At least as mercs? Armies? Which ghouls can cross borders, how and when?
4) Behavior? What would a ghoul do that would be different from regular metahumans? apart eat flesh.
5) Dual nature: how do you play this for a whole team of NPC?

Any other comments is welcome. Let's make those ghouls a real threat and inspire fear of ghouls in the campaign!

Thanks
Olivier