So, I was just thinking.. And I got an idea for how the Corsairs of Umbar may be implemented..
But, before I mention the idea, let's take a look at how the balance of the corsairs is:
Stats.
Health: 400
Melee damage: Same as Gondor soldiers (only no forged blades)
Ranged damage: Something balanced and not op
Speed: 70
Now, the idea of how they get added
What if mordor could build a tavern on a settlement (Like cirith ungol) It would probably cost 400, and it would be able to buy corsairs of umbar
But that's not it
It would have a unique upgrade. The unique upgrade is this: Once the tavern reaches level 3, the tavern will gain a new ability
Called "Plunder 'em all"
Once this is active, for 30 seconds, all corsairs will steal resources whenever they hit enemy units/buildings. Note, this will only affect Corsairs of umbar
What do you think?