For my Rome scn, I created a Barb Plunderer unit in the partisan slot, because I want to have Plunderers that really plunder the terrain. But they also should be aggressive, so I set the role to "Attacker", but they don´t attack?! In the beginning there is no much improved terain to plunder, so they only stand around...
Is there no way to get a unit in the partisan slot more aggressive?
Barbarian partisans are more agressive in ToT but in FW and MGE they only attack units with a zero attack strenght. They get some kind of attack bonus when attacking Zero strenght units.
The bottom line is if you want them to plunder only use the partisan slot. If you want them to plunder (sometimes) and attack use any other unit slot.